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Datasheet
USB Audio Decoder LSI Series
AAC/WMA/MP3
+SD Memory Card + iPod
BU94601KV BU94603KV
BU94604BKV
●Description
BU94601KV / BU94603KV / BU94604BKV are AAC+
WMA + MP3 decoder IC which contains USB host, SD
card I/F, audio DAC, system controller, and regulator for
internal CORE power supply.
●Package
●Features
„ USB2.0 Full Speed host I/F function contained.
„ Protocol conversion from I2C to USB HID or from
USB HID to I2C. (Only BU94604BKV)
„ SD card I/F function contained.
„ I2C I/F function contained.
„ FAT analysis function contained.
„ MP3 decode function contained. (available for
MPEG1, 2 and 2.5, Layer 1, 2 and 3)
„ WMA decode function contained.
(Except BU94601KV)
Available for WMA9 standard and not available for
DRM
„ AAC decode function contained.
(Except BU94601KV)
Available for MPEG4 AAC-LC and not available for
DRM
„ Sample Rate Converter contained.
„ System Controller contained.
„ LED Controller contained.
„ KEY matrix Controller contained.
„ Stand Alone mode contained.
„ External processor can control. (Slave mode)
„ Audio DAC contained.
„ Sound Effect function contained.
„ Digital Audio Output(I2S, S/PDIF) function contained.
„ File Name, Folder Name Sorting.
„ ID3TAG and WMATAG and AACTAG Analysis.
„ Reading a specified file data is possible from USB
memory.
„ LUN is selectable.
„ Regulator for internal CORE power supply
contained.
„ VQFP64pin(0.5mm pitch)
W(Typ.) x D(Typ.) x H(Max.)
VQFP64
12.00mm x 12.00mm x 1.60mm
●Applications
Audio products, etc
●Line up
Part number
Format
BU94601KV
MP3
BU94603KV
AAC/WMA/MP3
BU94604BKV
AAC/WMA/MP3
iPod
Not supported
Supported
Package
Ordering part number
VQFP64
Reel of 2000
BU94601KV-ZAE2
VQFP64
Reel of 2000
BU94603KV-ZAE2
VQFP64
Reel of 2000
BU94604BKV-ZAE2
○Product structure:Silicon Monolithic integrated circuit
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○Radiation resistance design is not arranged
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001
Datasheet
BU94601KV BU94603KV BU94604BKV
●Basic circuit application diagram-part1
Figure 1. an example of connection circuit application (BU94601KV/BU94603KV/BU94604BKV MODE1) *
Figure 2. an example of connection circuit application (BU94601KV/BU94603KV MODE2/3) *
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Datasheet
BU94601KV BU94603KV BU94604BKV
●Basic circuit application diagram-part2
Figure 3. an example of connection circuit application (BU94604BKV MODE2/3) *
This LSI has built in regulator for internal CORE power supply. DVDD terminal of 27PIN and 57PIN connect to
bypass condenser. DVDD terminal of 27PIN and 57PIN don’t connect to power supply.
The reference circuit and reference circuit parameters for crystal oscillator are shown above. The circuit
parameters introduced above is not taking into consideration the environment in customer’s systems or set‘s
board. Therefore, ROHM is not guaranteed this content in any circuits. Please check the optimal circuit parameter
in customer’s actual systems or products with the oscillator manufacturer.
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Datasheet
BU94601KV BU94603KV BU94604BKV
●Difference of BU94601KV/BU94603KV/BU94604BKV features
Item
BU94601KV
BU94603KV
Package
BU94604BKV
VQFP64
Number of pins
64pin
Power supply
3.3V (inner 1.5V regulator )
USB Full speed(12Mbps)
USB Host I/F
USB mass storage class
SPI mode
SD Card I/F
SD, SDHC, MMC, mini-SDcard
I2C command I/F(Slave)
Supported
Audio line output
Supported
I2S
Digital audio output
SPDIF
Sample rate converter
Supported
clock
16.9344MHz
Playable MP3 files
*.mp3,*.mp2,*.mp1
Playable WMA files
Not supported
*.asf,*.wma
Playable AAC files
Not supported
*.m4a,*.3gp,*.mp4
iPod
Not supported
Supported*1
*1 For using of BU94604BKV, It is necessary to become a licensee of Apple Inc. regarding "Made for iPod/iPhone/iPad License".
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Datasheet
BU94601KV BU94603KV BU94604BKV
●Block diagram
MP3/WMA/
AAC Decoder *
USB
I/F
File
System
(FAT16/32)
I2S
OUT
Data
Buffer
TAG Analysis
SD
I/F
16.9344
MHz
USB/
System
PLL
3.3V
1.5V LDO
/SD
Title 5. SONG_E
ALBUM Z
Artist ARTIST A
01:10 Album
User I/F
SRC
SPDIF
OUT
I2S Out
SPDIF Out
System Controller
Audio
DAC
Power
AMP
Command
I/F (I2C)
MCU
Main Control Block
*BU94601KV contains only MP3 decoder
Figure 4. Block diagram
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Datasheet
BU94601KV BU94603KV BU94604BKV
●Arrangement of Terminals
BU94601KV / BU94603KV / BU94604BKV
Figure 5. Arrangement of Terminals
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BU94601KV BU94603KV BU94604BKV
●Description of Terminals
STAND ALONE MODE (MODE1)
Pin
I/O I/O Pull-Up/
Down
Function
Signal
Name
No.
Cir
(*7)
1
RESETX
A
I
PU
2
SEL_SLAVE
B
I
PU(*1)
3
SEL_MP3
B
I
PU(*1)
4
SEL_DOUT
B
I
PU(*1)
5
SEL_VOL
B
I
PU(*1)
6
SEL_APLAY
B
I
PU(*1)
7
SEL_UTPKT
B
I
PU(*1)
TEST1 (*2)
B O
-
IRPTO (*3)
B O
-
H: Release RESET,
L: RESET
H: STAND ALONE, L:SLAVE
H: PLAY MP3 ONLY,
L: PLAY MP1,MP2 and MP3
H: Audio Line Output,
L: Digital Audio Output
H: Volume control valid,
L: Volume control invalid
H: Auto Play OFF ,
L: Auto Play
H: Normal Operation
L: USB Test Packet Output
←
←
9
TEST2
-
I
PU
10
KEY_ROW1
B
I
PU
OPEN (for TEST)
Device (Have 2 configuration
or more) connection’s
interruption output terminal
Pull-up to 3.3V system power
supply (for TEST)
KEY Input ROW1
11
KEY_ROW2
B
I
PU
12
KEY_ROW3
B
I
13
KEY_ROW4
B
I
14
KEY_COL1
B O
-
15
KEY_COL2
B O
16
KEY_COL3
B O
17
TEST3
B
I
PU
18
DVDDIO
-
-
-
19
20
21
22
23
24
SD_CON
SD_DO
SD_CLK
SD_DI
SD_CS
DVSS
B I
B I
B O
B O
B O
- -
-
25
TEST4
-
I
26
TEST5
-
27
DVDD_M2
28
8
SLAVE MODE (MODE2,MODE3)
Pull-Up/
Signal Name I/O Down
Function
(*7)
←
←
←
←
←
←
←
←
MCHNG
O
-
KEY Input ROW2
BUSY
O
-
PU
KEY Input ROW3
SCL
I
-
PU
KEY Input ROW4
SDA
I/O
-
KEY Input COLUMN1
A0
I
-
-
KEY Input COLUMN2
A1
I
-
-
I
PU(*1)
PU
KEY Input COLUMN3
SEL_SMAN
Pull-up to 3.3V system power
supply (for TEST)
Connect to 3.3V
System Power Supply
SD I/F (*4)
SD I/F (*4)
SD I/F
SD I/F
SD I/F
Connect to GND
Pull-up to 3.3V system power
supply (for TEST)
I
PU
Pull-up to 3.3V system power CLKOUT12(*5) I/O PU(*5) 12MHz CLK Output.
supply (for TEST)
(*5)
-
-
-
TEST6
-
I
-
29
TEST7
-
I
-
30
TEST8
-
I
-
31
ATEST1
-
O
-
32
AVDDC
-
-
-
33
34
35
USB_DM
USB_DP
AVSSC
C I/O
C I/O
- -
-
36
REXTI
D O
-
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
Connect to 57PIN
Pull-up to 3.3V system power
supply (for TEST)
Pull-up to 3.3V system power
supply (for TEST)
Pull-up to 3.3V system power
supply (for TEST)
OPEN (for TEST)
Connect to 3.3V
System Power Supply
USB DATAUSB DATA+
Connect to GND
USB bias resistor(12kΩ)
connecting terminal.
Arrange the resistance of
12kΩ near PIN, and wiring
on the PIN side doesn’t cross
with other signal lines.
7/66
Music change Output
Command
Operation Busy Flag
I2C I/F Clock Input
I2C I/F Data
Input/Output
I2C I/F Slave
Address Set0
I2C I/F Slave
Address Set1
H: MODE2, L: MODE3
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001
Datasheet
BU94601KV BU94603KV BU94604BKV
←
37
VOREFI
-
O
-
38
VDD_PLL
-
-
-
39
40
41
42
43
44
TEST_PLL
XIN_PLL
XOUT_PLL
VSS_PLL
DAVSS
RDACO
- I
E I
E O
- - F O
-
45
VCDACO
I
O
-
46
LDACO
F O
-
47
DAVDD
-
-
-
48
AMUTE
G O
-
OPEN (for TEST)
Connect to 3.3V
System Power Supply
OPEN (for TEST)
X'tal Input 16.9344MHz
Connect to X'tal 16.9344MHz
Connect to GND
Connect to GND
Audio DAC Line Output Rch
Audio DAC
Reference Voltage Output
Audio DAC Line Output Lch
Connect to 3.3V
System Power Supply
Audio Mute Output
(H:Mute Cancel, L:Mute)
49
LED_ERROR
B O
-
Error LED Output
TEST9
I
PU
50
LED_PLAY
B O
-
Play LED Output
TEST10
I
PU
51
LED_PSD
B O
-
Play SD Card LED Output
TEST11
I
PU
52
LED_PUSB
B O
-
Play USB LED Output
TEST12
I
PU
53
LED_ACCESS
B O
-
Memory Access LED Output
54
LED_RANDOM B O
-
55
LED_REPEAT
-
56
TEST13
-
I
PU
57
DVDD_M1
-
-
-
58
TEST14
F
I
-
59
TEST15
-
I
-
60
TEST16
-
I
-
61
TEST17
-
I
-
62
63
DVSS
TMODE
H
I
-
DVDDIO
-
-
-
64
*1
*2
*3
*4
*5
*6
*7
B O
←
←
←
←
←
←
←
←
←
←
←
LRCK
/SPDIF(*4)
I/O
(*6) PU(*6)
Random Play LED Output
BCK(*4)
Repeat Play LED Output
DATA(*4)
I/O
(*6) PU(*6)
I/O
(*6) PU(*6)
Pull-up to 3.3V system power
supply (for TEST)
Connect to
Bypass Condenser
Connect to GND
Pull-up to 3.3V system power
supply (for TEST)
Pull-up to 3.3V system power
supply (for TEST)
Pull-up to 3.3V system power
supply (for TEST)
Connect to GND
Connect to GND
Connect to 3.3V
System Power Supply
Pull-up to 3.3V system
power supply
Pull-up to 3.3V system
power supply
Pull-up to 3.3V system
power supply
Pull-up to 3.3V system
power supply
I2S Output
LR Clock /
SPDIF Output
I2S Output Bit Clock
I2S Output LR DATA
←
←
←
←
←
←
←
←
←
When L is input, Pull-UP turns OFF.
BU94601KV / BU94603KV
BU94604BKV
When SD I/F is disused, pull-up to 3.3V system power supply.
Enabled/Disabled can be selected using commands.
This pin becomes output and pull-up is OFF, only when 12MHz clock output is enable.
In STAND ALONE MODE (MODE1),
When Audio Line output is selected (SEL_DOUT=H), LED output is enabled.
When the Digital Audio output is selected (SEL_DOUT=L), the I2S format audio output is enabled.
In SLAVE MODE (MODE2, MODE3),
When the Analog Line output is selected (SEL_DOUT=H), these pins are TEST terminals.
When the Digital Audio output is selected (SEL_DOUT=L), I2S or SPDIF is selectable.
See Chapter 4 . SEL_DOUT for further information.
Input L level directly without resistance when you input L to the terminal with Pull-Up (about 33 kΩ).
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Datasheet
BU94601KV BU94603KV BU94604BKV
●Terminal equivalent circuit diagram
A
DVDDIO
B
DVDDIO
DVDDIO
C
D
DVDDIO
D
P
AVDDC
AVDDC
D
M
DVSSIO
E
VDD_PLL
F
VDD_PLL
XIN
15KΩ
AVSSC
15KΩ
AVSSC
DVSSIO
G
DVDDIO
DAVDD
AVSSC
H
DVDDIO
XOUT
VSS_PLL
VSS_PLL
DVSSIO
DAVSS
DVSSIO
I
DAVDD
DAVSS
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Datasheet
BU94601KV BU94603KV BU94604BKV
●Description of each block’s movement-part1
· BU94601KV/BU94603KV/BU94604BKV are AAC+WMA+MP3 decoder IC in which a USB host I/F, SD memory card I/F,
audio DAC and system control functions are built. Using a KEY or I2C interface command, the IC reads out a MP3 file
written to a memory device having a USB I/F or a SD memory card. All the operations required before the data can be
output to audio devices are incorporated into one chip. *BU94601KV supports only MP3.
· Supporting STAND ALONE MODE which is enabled by commands entered from the keyboard (hereinafter referred to
as MODE1), AUTO SLAVE MODE which is enabled by commands entered from the master microcomputer, same as
those entered from the keyboard, via the built-in I2C interface (hereinafter referred to as MODE2) and MANUAL SLAVE
MODE which can send the memory device information to the master microcomputer via the I2C interface and
completely control sequences such as a play sequence by the master microcomputer (hereinafter referred to as
MODE3).
· I2C bus <-> USB protocol conversion function built into. *Only MODE2 and MODE3 of BU94604BKV.
· Supporting fast forward playing and fast backward playing with music.
· Supporting outputs folder names, file names, ID3TAG (V1.0, V1.1 V2.2 V2.3 and V2.4) information and WMA-TAG
information and AAC-TAG(iTunes Meta-data) information via the I2C interface. This function is enabled only in MODE
2 and MODE 3.
· Supporting audio line output, digital audio output (I2S, SPDIF).
· Reading a specified file data is possible from USB memory. *Only a file that exists in root folder corresponds.
1.
USB host I/F
Builds in the USB Full speed (12 Mbps) HOST control function.
Supports the USB mass storage class.
Convert the protocol from I2C from USB(HID) and USB(HID) to I2C when communicating with the master
microcomputer.*
· An isochronous IN transfer function to 192 byte/Frame is built into.*
. Interrupt IN transfer function is built into.*
. It doesn't correspond to external HUB.
·
·
·
* Only the device with two CONFIGURATIONS or more. Only BU94604BKV.
2.
·
·
·
·
·
3.
SD card I/F
Supports the SPI mode.
Supports the MMC and mini-SD cards.
Supports the SDHC cards.
Supports the SD ver1.01 (file system).
Does not support CPRM.
I2C I/F
· Communicates with the master microcomputer using an I2C interface format.
· Supports the standard mode (100 kbps) and fast mode (400 kbps).
· Supports a 7-bit address.
· Can select four types of slave addresses.
4. Audio output
· 1bit-DAC output
· Builds in the digital soft mute function.
· Supports digital audio output (I2S, SPDIF).
· Builds in sound effects of POPS, JAZZ, ROCK, CLASSIC, R&B and BassBoost.*
* Only audio line output is enabled.
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Datasheet
BU94601KV BU94603KV BU94604BKV
●Description of each block’s movement-part2
5. FAT analysis
· Supports FAT16 and FAT 32.
· Supports VFAT (long file name).
· Supports multi-partition up to 1.
· The maximum number of playable folders within each folder is 65534.
· The maximum number of playable files within each folder is 65534.
· The maximum number of playable folders within each device is 65534.
· The playable folder hierarchy is up to 8 layers containing the root directory.
· The playable file extension supports *.m4a, *.3gp, and *.mp4 for AAC, *.wma and *.asf for WMA, *.mp3, *.mp2, and *.mp1 for
MP3. For *.mp2 and *.mp1, play enabled/disabled can be selected. Upper case letters and lower case letters are not
distinguished in the file extension. (BU94601KV supports only *.mp3, *.mp2, and *.mp1.)
· Sorts and plays up to 100 folders and 100 files in the order of UNICODE.
· Possible to obtain up to 64 bytes as the folder name or file name.
· Supports 1 sector of 512, 1024, 2048 and 4096 bytes.
· Playable file size is up to 2Gbyte-1 byte. Although a file over 2Gbyte is recognized as a playable file, 2Gbyte -1byte
part of the file is playable.
6. MP3 decoder
· Supports MPEG audio 1, 2 and 2.5.
· Supports Layer 1, 2 and 3.
· Supports sample rates 8k, 16k, 32k, 11.025k, 22.05k, 44.1k, 12k, 24k and 48kHz.
· Supports bit rate 8 to 320 kbps and VBR (Variable Bit Rate). *Except free format.
· Supports ID3TAG V1.0, V1.1, V2.2, V2.3 and V2.4.
(Up to 64 bytes can be obtained for the names of album, artist, and title.)
7. WMA decoder (BU94601KV doesn’t support.)
· Supports Windows Media Audio 9 standard.
· Not supports DRM.
· Supports sample rates 8k, 16k, 32k, 11.025k, 22.05k, 44.1k, and 48kHz.
· Supports bit rate 5 to 384 kbps and VBR (Variable Bit Rate). *Except free format.
· Supports WMA-TAG.
(Up to 64 bytes can be obtained for the names of album, artist, and title.)
8. AAC decoder (BU94601KV doesn’t support.)
· Supports MPEG4 AAC-LC encoded by iTunes.
· Not supports DRM.
· Supports sample rates 8k, 16k, 32k, 11.025k, 22.05k, 44.1k, 12k, 24k and 48kHz.
· Supports bit rate 8 to 320 kbps and VBR (Variable Bit Rate).
· Supports AAC-TAG(iTunes Meta-data).
(Up to 64 bytes can be obtained for the names of album, artist, and title.)
· The playable file extension supports *.m4a, *.3gp, and *.mp4
· Based on 3GPP TS 26.244.
· Supports file type of m4a, mp42, and 3gpX (numbers with arbitrary X).
*About except for the file encoded by iTunes, when the stream of a gap or video data is included in the file,
it may skip to the following music or skipping may be carried out.
9. Sample rate converter
· Converts all the supported sample rates to 44.1 kHz using a poly-phase operation.
10. System controller
· Controls all the system operations including KEY input, LED output, interface control with the master microcomputer,
USB device access, SD card access, FAT analysis, sort function, MP3 decode, WMA decode and audio output.
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Datasheet
BU94601KV BU94603KV BU94604BKV
●Description of each block’s movement-part3
11. KEY matrix controller
· Controls 12 types of KEY inputs: play/pause, stop, tune forward/fast forward playing, tune backward/fast backward
playing, folder forward, folder backward, 10-tune forward, volume up, volume down, repeat play, random play and
device selection.
12. LED controller
· Controls 7 types of LED outputs: play/pause, error, memory accessing, random playing, repeat playing, USB
selection and SD selection
13. Control from the master microcomputer
· Control from the master microcomputer is enabled using the I2C interface.
· Through the command operations, the following can be controlled: play, pause, stop, tune forward, tune backward,
fast forward playing, fast backward playing, folder forward, folder backward, 10-tune forward, 10-tune backward,
volume up, volume down, device selection, volume setting, repeat selection, random play, digital audio output setting,
sound effect setting, resume data setting and direct tune selection data setting.
· Controls the following: playing status output, pause, stop, searching, error, folder number, file number within folder,
play time information, number of total folders, number of total files, name of folder being played, name of file being
played, ID3TAG (title, artist and album) , WMATAG (title, artist and album), AACTAG (title, artist and album),resume
data and direct tune selection data (MODE3).
14. Function selection
· Selects MODE1 or MODE2/3 (SEL_SLAVE=H: MODE1, L: MODE2/3).
· Selects MPEG Audio Layer (SEL_MP3=H: play MP3 only, L: play MP1/MP2/MP3)
· Digital audio output selection (SEL_DOUT=H: output OFF, L: output ON)
· Sound volume operation selection (SEL_VOL=H: volume adjustable, L: volume not adjustable MAX output)
· Selects operation at power ON to check device (SEL_APLAY=H: stop, L: play). *Enabled in MODE 1 only.
· Selects MODE2 or MODE3 (SEL_SMAN=H: MODE2, L: MODE3). *Enabled in MODE 2/3 only.
15. File Read function in USB memory
· The specified data of file that exists in the root folder of the USB memory reading is possible.
* The file name corresponds only by 8.3 forms. (The wild-card cannot be used.)
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Datasheet
BU94601KV BU94603KV BU94604BKV
●Absolute maximum ratings (Ta = 25℃)
Parameter
Symbol
Supply voltage(Analog, I/O) VDD1MAX
Input voltage
Storage temperature range
Operating temperature
range
Power dissipation *1
Limits
-0.3 to 4.5
Unit
V
VIN
TSTG
TOPR
-0.3 to VDD1 + 0.3
-55 to 125
-40 to 85
V
℃
℃
PD
750
mW
Comment
DVDDIO, VDD_PLL,
DAVDD, AVDDC
*1:In the case of use at Ta=25℃ or more, 7.5mW should be reduced per 1℃.
Radiation resistance design is not arranged.
●Operating conditions (Ta = 25℃)
Parameter
Symbol
Supply voltage(Analog, I/O)
VDD1
Limits
3.0 to 3.6
Unit
V
Comment
DVDDIO,VDD_PLL,
DAVDD, AVDDC
●Electrical characteristics
(Unless specified, Ta=25℃,VDD1=3.3V, DVSS=AVSSC=VSS_PLL=DAVSS=0V, XIN_PLL=16.9344MHz)
Limits
Parameter
Symbol
Unit
Condition
MIN.
TYP.
MAX.
<Total >
65
80
Circuit
current
(VDD1 IDD1USB1
mA
*1 When USB memory is
USB1)
played.
Circuit current (VDD1 SD1) IDD1SD1
35
50
mA
*1 When SD card is played.
<Digital block>
H-Level input voltage
VIH
VDD1*0.7
-
VDD1
V
*3
L-Level input voltage
VIL
DVSS
-
VDD1*0.3
V
*3
H-Level output voltage1
VOH1
VDD1-0.4
-
VDD1
V
IOH=-1.6mA, *4
L-Level output voltage1
VOL1
0
-
0.4
V
IOL=1.6mA. *4
H-Level output voltage2
VOH2
VDD1-0.4
-
VDD1
V
IOH=-3.6mA, *5
L-Level output voltage2
VOL2
0
-
0.4
V
IOL=3.6mA, *5
H-Level output voltage3
VOH3
VDD1-0.4
-
VDD1
V
IOH=-0.6mA, *6
L-Level output voltage3
VOL3
0
-
0.4
V
IOL=0.6mA, *6
H-Level output voltage4
VOH4
VDD1-1.0
-
VDD1
V
IOH=-0.6mA, *7
L-Level output voltage4
VOL4
0
-
1.0
V
IOL=0.6mA, *7
<USB-HOST >
H-Level input voltage
VIHUSB VDD1*0.6
-
VDD1
V
*8
L-Level input voltage
VILUSB
AVSSC
-
VDD1*0.3
V
*8
Output impedance(H)
ZOH
22.0
45.0
60.0
Ω
*8
Output impedance(L)
ZOL
22.0
45.0
60.0
Ω
*8
H-Level output voltage
VOHUSB VDD1-0.5
-
VDD1
V
*8
L-Level output voltage
VOLUSB
0
-
0.3
V
*8
Rise/Fall time
Tr/Tf
-
11
-
ns
*8, Output capacity 50pF
Voltage of crossing point
VCRS
-
VDD1/2
-
V
*8, Output capacity 50pF
Range of differential input
VDIFF
0.8
-
2.5
V
*8
Differential input sensitivity
VSENS
0.2
-
-
V
*8
Pull-down resistance
RPD
14.25
15.0
24.8
kΩ
*8
<Audio DAC>
Distortion rate
THD
-
0.02
-
%
1kHz, 0dB, sine, *9
Dynamic range
DR
-
88
-
dB
1kHz, -60dB, sine, *9
S/N ratio
S/N
-
96
-
dB
*9
Max output level
VSMAX
-
0.92
-
Vrms
1kHz, 0dB, sine, no load, *9
*1 3.3V system I/O, Analog Power supply(VDD1), 1kHz, 0dB, sine-wave playing
*3 1-7, 9-17, 19-20, 25-26, 28-30, 40, 49-52, 56, 58-61, 63 pin
*4 8, 10-11, 14-16, 48-55 pin
*5 13 pin
*6 21-23, 26 pin
*7 41 pin
*8 33, 34 pin
*9 44, 46 pin
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●Application Information
1. Clock and reset
Clock
Signal name I/O
XIN_PLL
I
XOUT_PLL
O
Reset
Signal name I/O
RESETX
I
Function
X’tal (16.9344 MHz) connection
input terminal
X’tal (16.9344 MHz) connection
terminal
Remarks
Function
System reset input terminal
Remarks
To disable a reset signal, continue L input for more than 5 us after all of the supply voltage reach the specified value and
clock input from the oscillation I/O terminal becomes stable. (See Figure 6.)
Oscillation stabilization
standby time
fclk
Power
supply
XIN_PLL
RESETX
tRSTX
Figure 6 Reset Timing
Item
Symbol
min
Specification
typ
max
Unit
Clock frequency
fCLK
16.9302
16.9344
16.9386
MHz
Reset L interval
tRSTX
5
-
-
us
2. SEL_SLAVE
MODE1/MODE2, 3 selection input signal
Signal name
I/O
Function
SEL_SLAVE
I
Selects MODE1 or MODE2, 3.
Remarks
Remarks
H: MODE1, L: MODE2, 3
SEL_SLAVE selects MODE1 (STAND ALONE MODE) or MODE 2/3 (SLAVE MODE).
By selecting SEL_SLAVE, SLAVE mode terminal setting is enabled.
SEL_SLAVE is set only at power ON. Note that change of selection after power ON is ignored.
3. SEL_MP3
MPEG Audio Layer 1, 2, 3 play selection signal
Signal name I/O
Function
SEL_MP3
I
MPEG Audio Layer selection
Remarks
H: Can play MP3 only.L: Can play MP1, MP2 and MP3.
SEL_MP3 allows you to select the layer of the MPEG audio to be played. When enabling all the files having mp1,
mp2 or mp3 as the file extension to be played, enter L. When enabling mp3 only, enter H.
SEL_MP3 is set only at power ON. Note that change of election after power ON is ignored.
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4. SEL_DOUT
Audio output selection signal
Signal name I/O
Function
SEL_DOUT I
Audio output selection
Remarks
H: Line output, L: Digital output(I2S, SPDIF)
This SEL_DOUT selects audio output signal.
Table 1. “Audio output” shows the audio outputs for each MODE.
Also table 2. ”I2S_fs” shows the I2S output formats for each MODE.
For command, see Chapter VII
"TEST terminal" needs to be pull-up to 3.3V power supply.
Table 1. Audio output
MODE1
Pin No.
44
46
53
54
55
MODE2,3
SEL_DOUT=H
SEL_DOUT=L
function
I/O PU
function
HiZ
Line Out Rch O OFF
Line Out Lch
O OFF
HiZ
LED_ACCESS O OFF I2S LR CLOCK
LED_RANDOM O OFF I2S BIT CLOCK
LED_REPEAT O OFF I2S LRDATA
SEL_DOUT=H
I/O PU
O OFF
O OFF
O OFF
O OFF
O OFF
function
I/O PU
Line Out Rch
O OFF
Line Out Lch
O OFF
TEST terminal
I ON
TEST terminal
I ON
TEST terminal
I ON
SEL_DOUT=L
I2S
SPDIF ON
function
I/O PU
function
I/O
HiZ
O OFF
HiZ
O
HiZ
O OFF
HiZ
O
I2S LR CLOCK O OFF
SPDIF
O
I2S BIT CLOCK O OFF TEST terminal
I
I2S LRDATA
O OFF TEST terminal
I
*PU・・・Pull-Up
PU
OFF
OFF
OFF
OFF
OFF
Table 2. I2S_fs
MODE1
32fs
MODE2/3
Can select 32fs, 48fs, 64fs by command.
SEL_DOUT is set only at power ON. Note that change of selection after power ON is ignored.
5.
SEL_VOL
Sound volume operation selection signal
Signal name I/O
Function
Remarks
H:
Sound
volume
operation
enabled, L: Sound
SEL_VOL
I
Sound volume operation
volume operation disabled
SEL_VOL selects whether sound volume operation is to be enabled or disabled.
Sound volume operation is enabled when SEL_VOL=H.
Initial value of audio output is -24.1dB at power ON.
Sound volume operation is disabled when SEL_VOL=L. Audio output is fixed to 0dB.
Figure 7 shows the relationship between audio output and sound volume step.
SEL_VOL is set only at power ON. Note that change of selection after power ON is ignored.
0
-10
Audio output (dB)
-20
-30
-40
Initial value: -24.1 dB
(when SEL_VOL=H)
↓ -∞
-50
-60
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
Volume step
Figure 7 Volume Step Function
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6. SEL_APLAY
Auto play selection signal at power ON/device recognition
Signal name I/O
Function
Remarks
Auto
play
selection
signal
at
H:
Stop
after
recognizing
device, L: Play after
SEL_APLAY I
device recognition
recognizing device
SEL_APLAY selects whether the audio data in the memory is to be automatically played when a memory device
(USB memory or SD card) is inserted at power ON or when the system recognizes the memory device inserted.
SEL_APLAY can be selected only in MODE1. Since selection of SEL_APLAY is ignored in MODE2/3, select it
from Pull-up. When MODE2/3 is selected, audio data is halted after the system recognizes a device.
7. SEL_UTPKT
USB test packet
Signal name I/O
Function
SEL_UTPKT I
USB test packet send
Remarks
H: Disabled, L: USB test packet send
A test packet signal is output from USB_DP terminal or USB_DM terminal when L is set to SEL_UTPKT at power
ON.
Once enabled, SEL_UTPK keeps that state regardless of operation modes and sends out a test packet.
A test packet signal is continuously output until power turns OFF. Use SEL_UTPKT when evaluating the USB
terminal. In other cases, use it from Pull-up.
8. Audio line output
Audio line output
Signal name I/O
Function
LDACO
O Lch audio line output
RDACO
O
Remarks
-
Rch audio line output
-
These signals are decoded MP3 music audio data line outputs.
They turn ON when the line output is selected by SEL_DOUT terminal.
Sample rate converter converts the sample rate 48kHz and 32kHz to 44.1kHz and outputted.
9. MUTE control output
Audio MUTE
Signal name I/O
Function
AMUTE
O Audio mute control terminal
Remarks
H: At audio output, L: At mute
This terminal outputs H at audio output and L at mute.
This signal can be used as flag for external amplifier when mute audio output at power ON or FF/FB (silence).
Figure 8 shows the operation waveform.
At start of play
At stop of play
AMUTE
23 ms at 0dB
23 ms at 0dB
LDACO, RDACO
Figure 8 Waveform at Audio Mute
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10. KEY input format
3x4 matrix command input
Signal name I/O
Function
KEY_ROW1 I
Remarks
-
KEY_ROW2
I
-
KEY_ROW3
I
-
KEY_ROW4
I
KEY_COL1
O
-
KEY_COL2
O
-
KEY_COL3
O
-
KEY matrix I/O signal
Configure a circuit for the matrix signals terminals for KEY commands as shown in the applied circuit diagram
figure 9.
The operation corresponding to the key pressed over the circuit is performed.
Details of each operation are explained in Chapter 21.
+10
REPEAT
VOL-
VOL+
FB
PLAY/
PAUSE
KEY_
ROW1
KEY_
ROW2
RANDOM
CHG_DEV
FOL-
FOL+
FF
STOP
KEY_
ROW3
KEY_
ROW4
KEY_
COL1
KEY_
COL2
KEY_
COL3
Figure 9 KEY Matrix Applied Circuit Diagram
11.
I2C interface format
I2C serial interface
Signal name I/O
Function
SCL
I
I2C interface clock input
Remarks
-
I2C interface data I/O
-
I
Slave address selection terminal
Slave address [0] bit setting terminal
I
Slave address selection terminal
Slave address [1] bit setting terminal
SDA
I/O
A0
A1
This is an I2C serial interface terminal. By inputting L to SEL_SLAVE terminal, the interface terminal becomes
enabled.
The terminal supports slave I2C operation.
11.1 I2C protocol
When I2C bus is in IDLE, SDA and SCL are set to H by the external Pull-up resistance. When starting
communications, the master sets SDA to L while SCL is set to H (Start condition). When ending communications,
the master sets SDA to H while SCL is set to H (Stop condition). During transfer, SDA is changed only when SCL
is set to L. Figure 10 shows Start condition, Stop condition of I2C.
SCL
1
SDA
MSB
2
8
9
LSB
ACK
1
Start
condition
9
ACK
Stop
condition
Figure 10 I2C start, stop condition
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11.2 Slave address
An I2C bus slave address corresponds to the 7-bit addressing mode. As shown in Table 3., you can select the
slave address using input of A0 terminal and A1 terminal. Figure 11 shows the slave address transfer format.
S
A6
A5
A4
Start
condition
A3
A2
A1
A0
R/W
ACK
sent by
slave
Slave Address
R / W = Read / Write Pulse
ACK = Acknowledge
Figure 11 Slave Address Transfer Format
Table 3. Settable Slave Addresses
MSB
A6
A5
A4
A3
A2
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
LSB
A1
A0
terminal terminal
0
0
0
1
1
0
1
1
11.3 Write protocol from master
To send a master command using an I2C bus, follow the transfer protocol shown in Figure 12. For details on
each command, see Chapter of “Command operation”.
S
Slave Address
R/W
A
Data(8bit)
A
Data(8bit)
A
Data(8bit)
A/A
P
"0"(write)
From Master to Slave
From Slave to Master
A = Acknowledge(SDA low)
A = No Acknowledge(SDA high)
S = Start Condition
P = Stop condition
Figure 12 Command send protocol
11.4 Read protocol to master
To send reception data using an I2C bus from the slave to the master, follow the transfer protocol shown in
Figure 13. First, transfer the status read command (step1). Then, input SCL clock of required bytes in step 2 to
read the status.
When the device is BUSY at reception of device status or memory data, the I2C bus may possibly be occupied
by the device during BUSY. This LSI transfers the bus to the master so as not to generate such bus
occupation. However, as a BUSY state still exists inside of the system, appropriate data may not be
transferred during BUSY. Therefore, the first byte of transfer data (Step2) is used to judge the transfer data is
enabled/disabled. When specifying addresses from the master to the slave and the first byte of the transfer
data immediately after data transfer is required is 0x00, transfer data from the slave is enabled. If the first byte
is 0xFF, it shows the BUSY state. Therefore, the transfer data should be disabled. If this happens, retry
command transfer at Step 1 to read out the status.
Figure 14 shows the relationship between the transfer data and BUSY.
* For further information on BUSY, see Chapter 17.
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Step1
S
Slave Address
R/W
A
Data(8bit)
A
A
Data(8bit)
A
Data(8bit)
A/A
P
"0"(write)
Step2
S
Slave Address
R/W
Data(8bit)
A
Data(8bit)
A/A
P
"1"(read)
From Master to Slave
A = Acknowledge(SDA low)
A = No Acknowledge(SDA high)
From Slave to Master
S = Start Condition
P = Stop condition
Figure 13 Status Reception Protocol
I2C
Step1 command
S
Slave Address
R
A
BUSY
0xFF
A
Data(8bit)
A
Data(8bit)
A/A
P
Dummy byte for Busy
Step1 command
S
Slave Address
R
A
0x00
A
Data(8bit)
A
Data(8bit)
A/A
P
Dummy byte for Busy
Figure 14 Relationship between Transfer Data and BUSY
11.5 I2C Bus line electrical specification and timing
SDA and SCL bus-line characteristic (Unless specified, Ta=25℃, VDD1=3.3V)
Code
Min.
Max.
Unit
1
SDA, SCL H input voltage
Parameter
VIH
VDD*0.7
VDD
V
2
SDA, SCL L input voltage
VIL
DVSS
VDD*0.3
V
3
SDA H output voltage
VOH
VDD-0.4
VDD
V
4
SDA L output voltage
VOL
0
0.4
V
SCL clock frequency
fSCL
0
400
kHz
tBUF
1.3
-
us
tHD;STA
0.6
-
us
5
6
7
Bus-free-time between "Stop" condition and
"Start" condition
Hold time for "Start" condition
After this, the first clock pulse is generated.
8
LOW status hold-time of SCL clock
tLOW
1.3
-
us
9
HIGH status hold-time of SCL clock
tHIGH
0.6
-
us
10
Data-hold-time
tHD;DAT
0
-
us
11
Date-setup-time
tSU;DAT
100
-
ns
12
Rising time of SDA and SCL signal
tR
20+0.1*Cb
300
ns
13
Fall time of SDA and SCL signal
14
Setup time of "Stop" condition
15
Capacitive load of each bus-line
*
tF
20+0.1*Cb
300
ns
tSU;STO
0.6
-
us
Cb
-
400
pF
The above-mentioned numerical values are all the values corresponding to VIH min and VIL max level.
*To exceed an undefined area on falling edged of SCL, transmission device should internally offer the hold-time of 300ns or more for SDA signal (VIH min of
SCL signal).
Because the "Repeated Start" condition to send "Start" condition without sending "Stop" condition doesn't correspond, after sending "Start" condition, always
send "Stop" condition.
Neither terminal SCL nor terminal SDA correspond to 5V tolerant.
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SDA
tBUF
tF
tR
tLOW
SCL
tHD;STA
P
tHIGH
tHD;DAT
tSU;DAT
tSU;STO
S
P
Figure 15 Timing chart
12. I2S format
I2S format
Signal name I/O
LRCK
O
Function
I S Bit clock output (fs=44.1kHz) -
Remarks
2
BCK
O
I2S Bit clock output
-
DATA
O
I2S data output
-
This is digital audio interface terminal. By inputting L to SEL_DOUT terminal, the interface terminal becomes
enabled. When selecting the I2S digital audio output, the output format varies depending on MODE. MODE2
allows you to select 32fs, 48fs or 64fs. *See Chapter 4.
Figures 16, 17 and 18 show the I2S format to be output.
LRCK
Left Channel
Right Channel
BCK(32fs)
1
DATA
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
2
Figure 16 I S Output Timing (32fs)
LRCK
Left Channel
Right Channel
BCK(48fs)
15 14 13 12 11 10
DATA
9
8
7
6
5
4
3
2
1
0
15 14
2
Figure 17 I S Output Timing (48fs)
LRCK
Left Channel
Right Channel
BCK(64fs)
DATA
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
15 14 13 12
2
Figure 18 I S Output Timing (64fs)
12.1 I2S Timing
48fs I2S format (Unless specified, Ta=25℃, VDD1=3.3V, Load : 20pF)
Parameter
Symbol
Min
Typ
Max
unit
BCK Clock Frequency
Tbck
-
472.4
-
ns
BCK Low time
Tbck1
216
236
-
ns
BCK High time
Tbck2
216
236
-
ns
kHz
LRCK Clock Frequency
Tlrck
-
44.1
-
LRCK Output delay
Tlrck1
-20
0
20
ns
DATA Output delay
Tda1
-20
0
20
ns
Output High Voltage
Voh
VDD1-0.4
-
-
V
Output Low Voltage
Vol
-
-
0.4
V
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LRCK
Left Channel
Vol
Tlrck1
Tbck1
Tbck2
Voh
BCK
Vol
Vol
Tda1
DATA
MSB
Figure 19 Timing chart
13.
SPDIF format
SPDIF format
Signal name I/O
SPDIF
O
Function
SPDIF output
Remarks
-
SPDIF output becomes enabled by setting SEL_DOUT terminal to L and setting this condition using the I2C
command.
Figure20 shows the SPDIF digital audio signal output format.
0
34
11 12
Synchronous
preamble
Source code
all 0
27 28 29 30 31
Audio data(16bit)
LSB
MSB V
U
C
P
(B pattern)
Synchronous
preamble
(M pattern)
(W pattern)
Source code(4-31)
0
0
0
0
0
0
0
0
1
0
1
1
0
1
Synchronous
preamble
SPDIF output
Figure 20 SPDIF Output Format
A sub-frame of SPDIF is composed of synchronous preamble, 16-bit audio data, V bit (validity flag), U bit (user
data), C bit (channel status) and P bit (parity bit).
Output rate is fixed to 1X speed.
SPDIF outputs synchronous preamble (source code 0-3) as it is and others (source code 4-31) as bi-phase output.
It outputs L while the operation is stopped.
Synchronous preamble and C bit use 32 frames (≈4.4ms) as one cycle. Table 4. and Table 5 show these formats.
V bit is fixed to L. U bit uses 98 frames (≈13.3ms) as one cycle.
Table 4. Synchronous Preamble Pattern
L0
R0
L1
R1
L2
R2
0
B
W
M
W
M
W
M
W
M
W
M
W
1
M
W
M
W
M
W
M
W
M
W
M
W
:
:
:
:
:
:
:
:
:
:
:
:
:
31
M
W
M
W
M
W
M
W
M
W
M
W
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Table 5. C Bit Format
L0
R0
L1
R1
L2
R2
L3
R3
L4
R4
L5
R5
0
0
0
0
0
0
0
1
0
0
1
0
0
0
2
0
0
0
0
0
0
3
0
0
0
0
4
0
0
1
0
0
0
0
1
0
0
5
0
0
0
0
0
0
:
:
:
:
:
:
:
31
0
0
0
0
0
0
Table 6. U Bit Format
L0
R0
L1
R1
L2
R2
L3
R3
L4
R4
L5
R5
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
0
0
0
0
0
0
0
0
0
0
3
1
0
0
0
0
0
0
0
0
0
0
0
:
:
:
:
:
:
:
:
:
:
:
:
:
97
1
0
0
0
0
0
0
0
0
0
0
0
P bit is set to 1 if the number of “1s” of source codes 4-30 is odd, and set to 0 if the number is even. Therefore,
the number of source codes which turn to 1 for one data must be an odd value, SPDIF ends with L output and
preamble output always starts in the same direction.
13.1 SPDIF Timing
(Unless specified, Ta=25℃, VDD1=3.3V, Load : 20pF)
Parameter
Symbol
Min
Typ
Max
unit
Tck
-
2.822
-
MHz
SPDIF Clock High time
Tck1
150
177
-
ns
SPDIF Clock Low time
Tck2
150
177
-
Output High Voltage
Voh
VDD1-0.4
-
-
V
Output Low Voltage
Vol
-
-
0.4
V
SPDIF Clock Frequency
Figure 21 Timing chart
14.
USB I/F
USB I/O I/F
Signal name I/O
USB_DP
I/O
USB_DM
I/O
REXTI
O
Function
USB D+I/O terminal
Remarks
-
USB D-I/O terminal
USB bias resistance connection
terminal
Connect resistance of 12kΩ ± 1% to GND.
Differential signals of USB_DP and USB_DM enable communications with USB devices.
REXTI terminals become bias resistance connection terminals of the USB-PHY block.
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15.
SD I/F
SPI interface for SD memory card I/F
Signal name I/O
Function
SD_CS
O SPI chip select
Remarks
-
SD_CLK
O
SPI clock
-
SD_DI
O
SPI data input
-
SD_DO
I
SPI data output
SD card connect detection
H: Not detecting SD card connection.
SD_CON
I
terminal
L: Detecting SD card connection.
These I/F enable communication with SD memory cards through SD memory card slots.
Since SD memory card slot requires detecting insertion of SD memory card, use of slot equipped with SD memory
card detecting terminal and connection to SD_CON terminal are required.
SD_CON terminal is pulled up within the device and detects SD memory card connection by L input.
15.1 SD I/F Timing
(Unless specified, Ta=25℃, VDD1=3.3V, Load : 20pF,10kΩ)
Parameter
Symbol
Min
Typ
Max
unit
SD_CS Setup time
Tcss
-
0.25
-
us
SD_CS Hold time
Tcsh
-
1.15
-
us
SD_CLK Clock Frequency
Tclk
-
4.23
-
SD_DI Output delay
Tod
-20
-
20
ns
MHz
SD_DO Data in Setup time
Tds
20
-
-
ns
SD_DO Data in Hold time
Tdh
120
-
-
ns
Output High Voltage
Voh
0.625*VDD1
-
-
V
Output Low Voltage
Vol
-
-
0.25*VDD1
V
Figure 22 Timing chart of SPI for SD memory card
16. MCHNG
Playing sound tune number detection output
Signal name I/O
Function
Remarks
Music tune number change
MCHNG
O
H: Playing, L: Tune completed/stopped
detection output signal
This signal outputs change of file to be played during playing MP3 file in the memory device.
MCHNG correctly outputs "H" during MP3 decode sequence, outputs "L" during "STOP" status.
Connect it to the interruption port of the microcomputer.
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17. BUSY
BUSY state detection output
Signal name I/O
Function
Remarks
BUSY state detection output
BUSY
O
H: Busy, L: Not Busy
signal
This signal outputs to indicate that this LSI is in BUSY.
BUSY signal analyzes commands from the master and outputs H until the operation is executed.
This LSI ignores command input during BUSY. However, only the ABORT and STOP commands can be
accepted even during BUSY, which can be executed. *See Chapter 11.
18. IRPTO
CONFIG outputs it for two more device connection state detection.
Signal name I/O
Function
Remarks
USB CONFIG outputs it for two
IRPTO
O more device connection state
H: Detection
, L: Undetection.
detection.
When the USB device is chosen, output it to show that the USB device that two USB CONFIGURATION
DESCRIPTOR or more has in this LSI is connected. The timing of an output is dependent on the connected USB
device.
19. TEST terminal
By the terminal setting of TEST15, TEST16 and TEST17, It is possible to following function.
TEST15 TEST16 TEST17
Function
H
H
H
Full function effective
L
L
L
Only WMA and MP3 can play-back. The AAC file is disregarded. *1
H
L
L
The IRPTO function is invalidated. *2
*1 Except for BU94601KV
*2 Only BU94604BKV
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20. File detection
20.1 Function
· This function supports FAT16 and FAT32 file systems. (It does not support NTFS and FAT12.)
· The maximum number of playable files per folder
Table 7. Maximum Number of Playable Files
Root folder
512
65535
FAT16
FAT32
Sub folder
65534
65534
The number of files described above contains unsupported files and folders. If unsupported files and folders exit
within the folder and exceed the maximum number, all the supported files may not be played.
· Files less than 100 can be sorted by UNICODE in the FAT order within the folder. Files over 100 are sorted
in the FAT order. Also, the folders can be sorted in the same manner and those over 100 are sorted in the
FAT order.
· The searchable folder hierarchy is of 8 layers containing the root folder. Figure 23 shows an example of
memory layers.
USB
Memory
Playable layers
Folder
Folder
Folder
File
File
Folder
Folder
File
Folder
Folder
File
Folder
File
File
Folder
Folder
Folder
File
Folder
Folder
Folder
File
File
File
Folder
File
File
File
Folder
File
File
File
File
File
File
File
Unplayable layers
File
Figure 23 Example of Memory Layers
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20.2 Playable file (BU94601KV doesn’t support AAC/WMA files)
The playable file extensions are *.M4A, *.3GP and *.MP4 for AAC files, *.WMA and *.ASF for WMA files, *.MP3,
*.MP2 and *.MP1 for MP3 files. (Upper case letters and lower case letters are not distinguished.) Note that
the file operation differs in the following cases:
(1) SEL_MP3: See SEL_MP3 for details.
(2) Attribute: AAC/WMA/MP3 file whose attribute is masked can be played. A file with system attributes
cannot be played.
(3) Data destroyed file: When the data section of AAC/WMA/MP3 file is destroyed, the music data of the file
can be played as much as possible rather than disabling to play the entire file. The section which cannot
be played is muted. However, AMUTE terminal remains the H output level. When the header section of
WMA and AAC file is destroyed, it plays next.
(4) File name: A file name and its size do not depend on playing.
(5) Extension: When file data is configured in the non-AAC format and its file extension is *.M4A, *.3GP and
*.MP4 the state is play next. When file data is configured in the non-WMA format and its file extension is
*.WMA, or *.ASF, the state is play next. When file data is configured in the non-MP3 format and its file
extension is *.MP3, *.MP2 or *.MP1, the state is silent playing basically. If playable data can be read, only a
part of the file can be played. The information on time required to output serial status also becomes
uncertain. Then, partial output is done but the correct time information is not output.
(6) File size: When file size is “0”, the file do not recognize at AAC/WMA/MP3 files.
(7) This LSI corresponds to the AAC file encoded by iTunes. The versions of iTunes checked operation are 4.*,
5.*, 6.*, and 7.0 to 7.5. The AAC file encoded with other software may cause fault, such as being in the
middle of reproduction and skipping to next.
(8) When the extension of WMA file is *.ASF, this LSI corresponds to the ASF file of only an audio stream.
20.3 Playing sequence
The playing sequence of supported files is determined based on the following rules. See Figure24.
(1) Folders are sorted in the order written in FAT (in the order of FAT), and files 1 to 100 are sorted in the order
of UNICODE. (*See Chapter 20.4.) Files over 100 are sorted in the order of FAT. Folders over 100 are
sorted in the same manner.
Files are sorted following SEL_MP3. Folders are sorted including null folders and those in which
supported files are not written. Within each folder, supported files over 100 and folders over 100 are
played in the order written to the FAT directory entry.
Since how to write to the directory entry depends on the OS (Operating System) processing to write to the
memory, you cannot understand the file playing sequence.
(2) When supported files exist in the root folder (the highest layer), the files are played first.
(3) When all the files in the root folder have been played, those in the folder under the root folder, if any, are
played.
(4) When a folder is layered under that, files in the folder are played. When not, the master searches any
other folders at the same layer and plays the one, if any.
(5) After playing all the files, the master returns to the root folder as described in (2) and start playing with the
first sorted file.
20.4 Folder/file sort
Folders and files are sorted in the following sequence using this LSI.
(1) Obtain up to 100 files and 100 folders in the order written to FAT.
(2) Compare the obtained folder/file names up to 14 characters (including filename extensions) and sort them
in the ascending order.*
(3) When the same strings are generated, follow the order written to FAT.
(4) For 101 or more folders and files, follow the order written to FAT.
*
The processing of the file name and the folder name is shown in the following.
1)When the LFN(long file name) entry exists, folder/filename is processed as one character in two bytes.
2)When the LFN entry doesn't exist, the SFN(short file name) entry is processed as follows.
2-a) When character-code that appears first is ≧0x80 ,It’s treated as the first byte of two byte character.
Byte data afterwards is treated as the second byte of two byte character-code, and treated by two
bytes as one character.
2-b) When the case that doesn't apply to 2-a) ,that is, the character-code appears first is installed within the
range of 0x00-0x7F(US-ASCII) One byte is treated as one character. '0x00' is added and enhanced to
Unicode.
Please confirm the specification of the FAT filesystem about details of LFN and SFN.
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A.mp3
B.mp3
C.mp3
[Root
Folder]
A_FOLDER
D_FOLDER
D.mp3
E.mp3
F.mp3
G.mp3
H.mp3
B_FODER
I.mp3
J.mp3
C_FOLDER
K.mp3
L.mp3
M.mp3
N.mp3
O.doc
P.xls
Q.mp3
E_FOLDER
U.mp3
V.mp3
W.mp3
X.mp3
Y.mp3
Z.mp3
R.txt
S.txt
T.txt
Figure 24 Configurations of Folders and Files within Memory Device
Table 8. MP3 File Playing Sequence for Folder/File Configuration as in Figure24
Playing
sequence
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
File to be
played
A.mp3
B.mp3
C.mp3
D.mp3
E.mp3
F.mp3
G.mp3
H.mp3
I.mp3
J.mp3
K.mp3
L.mp3
M.mp3
N.mp3
Q.mp3
U.mp3
V.mp3
W.mp3
X.mp3
Y.mp3
21
Z.mp3
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Remarks
· If MP3 files exist in the root folder,
those files are played first.
· Files are played in the ascending order
of UNICODE by file name.
· After all MP3 files in the root folder are
played, the master searches folders
under that layer.
· The master searches folders in the
ascending order of UNICODE by folder
name.
· Non-MP3 files are ignored.
· After the master plays all MP3 files
including those in the lower layers
within A_FOLDER, it moves to a folder
in the same layer as A_FOLDER to
search MP3 files.
· Since there is no MP3 file in
D_FOLDER, the layers same as
A_FOLDER, the master plays MP3
files in E_FOLDER under that.
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20.5 Search within multi-drive and multi-partition
If a device is a multi-drive type or multi partition type, the LSI can recognize the drive by selecting LUN (Logical
Unit Number) for the supporting FAT. (MODE2 and MODE3)
If particular LUN isn’t selected, the LSI mounts the device whose LUN detected first. (default)
When the multi-card reader is connected, the LSI can recognize device which connected to the card-reader by
selecting LUN. But after the device is mounted, it’s impossible to recognize states whether the device connected to
the card-reader is inserted or removed.
20.6 External HUB search
When the USB connector is connected to a HUB, and a FAT-supported drive is connected ahead of the HUB at
mounting the USB for this LSI, only one drive is recognized.
The LSI does not support external HUBs, it cannot detect plugging/unplugging of the drive ahead of the HUB after
the USB is mounted.
21. MODE1
21.1 KEY command operation
21.1.1 KEY SCAN (Single Mode)
KEY SCAN operates in the following sequence on the circuit configuration as shown in Figure 9.
(1) KEY_COL1 to 3 output waveforms at timing as shown in Figure25.
(2) By pressing KEY switch, KEY_ROW 1 to 4 are set to L at timing when KEY_COL 1 to 3 are L.
(3) When detecting L input from KEY_ROW 1 to 4 three times, the master judges that KEY has been
pressed. Then, the master starts the KEY operation.
Figure 25 KEY SCAN Waveform.
420ns
420ns
420ns
20ms
KEY_COL1
KEY_COL2
KEY_COL3
Figure 26 Operating Waveforms when KEY is Pressed
20ms
20ms
20ms
20ms
20ms
20ms
PLAY
KEY_ROW1
KEY_ROW2
KEY_ROW3
KEY_ROW4
KEY_COL1
Determine that KEY is pressed
Start the operation of the pressed KEY.
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21.1.2 KEY SCAN (Hold Mode)
KEY SCAN operates in the following sequence on the circuit configuration as shown in Figure 9 .
(1) KEY_COL1 to 3 output waveforms at timing as shown in Figure25.
(2) By pressing KEY switch, KEY_ROW 1 to 4 are set to L at timing when KEY_COL 1 to 3 are L.
(3) When detecting L input from KEY_ROW 1 to 4 three times, the master judges that KEY has been
pressed. Then, the master starts judging status of held KEY.
(4) When pressed KEY’s decision (L input from KEY_ROW 1 to 4 three times) is detected consecutive
15 times, the master judges that KEY Mode is Hold Mode.
(5) When KEY release is detected in judging status of hold KEY, the master judges that KEY Mode is
Single Mode. Then, the master starts the KEY operation.
(6) When Hold Mode is detected, the master starts the KEY operation in Hold Mode. When KEY release
is detected in Hold Mode, the master finish the KEY operation.
The keys corresponding to Hold Mode are FF, FB, VOL+, and VOL-.
Figure 27 KEY SCAN Waveform.
Note 1: Based on the above sequence, the master determines that KEY is pressed and starts the operation of the pressed
KEY, pressing multiple KEYs at the same time will produce different operations depending on the KEY
combinations. Therefore, you cannot regulate the operation sequence correctly even simultaneously pressing
multiple KEYs will not cause any problems. In Hold Mode, Other pressed KEY is disregarded.
Note 2: Because the KEY input does not have a buffering function, KEY inputs other than those described below are
ignored.
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21.1.3 KEY operation
Table 9. shows the types and operations of KEYs.
Table 10. shows enabled/disabled states of KEY operations.
Table 9. KEY Commands and Operation Description
KEY COMMAND
PLAY/PAUSE
STOP
FF
FB
FOL+
FOL-
+10
VOL+/VOL-
OPERATION DESCRIPTION
· When receiving “PLAY/PAUSE” key during stop, the master starts playing the first MP3 file
sorted to the recognized device.
· When receiving “PLAY/PAUSE” key during play, the master stops playing the MP3 file
temporarily. When receiving PLAY/PAUSE key again, the master restarts playing the file.
· When receiving “STOP” key during play, pause or file search, the master stops playing,
pausing or searching the MP3 file.
· When receiving “FF” KEY (Single Mode) during play or pause, the master searches the next
supported file in the order of sort of files being played or paused. Upon completion of
searching, the master starts playing the file.
· During play of the last file, the master returns to the first file in the order of sort and plays the
file.
· When receiving “FF” KEY (Hold Mode) during play or pause, the master starts fast forward
playing the file. When "FF" KEY release is detected, the master return to normal playing.
· When music finishes into "FF" KEY (Hold Mode), the master starts fast forward playing from
top of the next file. However, when selecting “REPEAT” or “RANDOM”, master search next
file by setup.
· When receiving “FB” KEY (Single Mode) during play or pause, the master searches the
previous supported file in the order of sort of files being played or paused. Upon
completion of searching, the master starts playing the file.
· During play of the first file, the master plays the last file in the order of sort.
· When receiving "FB" KEY within 1sec from top of file playing, the master searches the
previous supported file in the order of sort of files being played. Upon completion of
searching, the master starts playing the file. When receiving "FB" KEY over 1sec from top of
file playing, the master starts playing from top of the file.
· When receiving “FB” KEY (Hold Mode) during play or pause, the master starts fast
backward playing the file. When "FB" KEY release is detected, the master return to normal
playing.
· When music finishes into "FB" KEY (Hold Mode), the master starts fast backward playing
from end of the previous file. However, when selecting “REPEAT” or “RANDOM”, master
search previous file by setup.
· When receiving “FOL+” KEY during play or pause, the master searches the supported files
in the next folder in the order of sort of the folder in which the file being played or paused
exists. Upon completion of search, the master plays the file.
· During play of the file in the last folder in the order of sort, the master plays the first file in
the order of sort.
· When receiving “FOL-“ KEY during play or pause, the master searches the supported files
in the next folder in the order of sort of the folder in which the file being played or paused
exists. Upon completion of search, the master plays the file.
· During play of the file in the first folder in the order of sort, the master plays the first file in
the order of sort in the last folder.
· When receiving “+10” KEY during play or pause, the master searches supported files 10
files next to the current one in the order of sort of the file being played or paused. Upon
completion of search, the master starts playing the file.
· When the remaining files are less than 10 during play of the current file, the master plays
the first file.
· When receiving “VOL+/VOL-“ KEY while SEL_VOL terminal is set to H, the master controls
sound volume.
· Sound volume can be controlled at 32 steps from -∞ (minimum volume) to 0dB (maximum
volume).
· Since VOL+/VOL- KEY does not judge release of KEY, the master turns up or down volume
step by step when determining press of the KEY. Therefore, VOL KEY can be held down.
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CHNG_DEV
REPEAT
RANDOM
· The master selects the device between USB memory and SD memory card. To do this,
both devices should be connected or one device should correspond to the other (USB to SD
or SD to USB). Otherwise, this key operation is ignored.
· Stop after selecting the device at the top tune of the device.
· REPEAT and RANDOM settings return to the initial values.
· When inserting both USB Memory and SD Memory card, or neither USB Memory nor SD
Memory card, the master precedes USB Memory.
· This key changes the mode of repeat.
· Press of “REPEAT” KEY toggles like: “repeat all tunes in memory” Æ “repeat one tune” Æ
“repeat within folder”.
· When selecting “repeat within folder”, the master repeats files within the folder being played.
The initial setting is “repeat all tunes in memory”.
· This key plays the range of ± 128 files from the current one being played in the order of sort
at random.
· “RANDOM” KEY is enabled to change mode only during play, pause or stop.
Table 10. KEY Operation Enabled/Disabled
After recognizing device
(Search or pause)
Recognize Recognize
either USB
both USB
or SD
and SD
During play of device
Recognize
either USB
or SD
Error
Recognize Searching Recognize Recognize
both USB
either USB both USB
and SD
or SD
and SD
PLAY/
PAUSE
STOP
{
{
{
{
×
×
×
×
×
{
{
{
×
×
FF
×
×
{
{
×
×
×
FB
×
×
{
{
×
×
×
FOLDER+
×
×
{
{
×
×
×
FOLDER-
×
{
×
{
{
{
×
VOL+
{
{
×
×
{
×
{
VOL-
{
{
{
{
×
{
{
+10
×
{
×
×
×
×
×
{
{
×
{
{
REPEAT
×
{
×
{
{
CHNG_DEV
{
×
×
×
RANDOM
{
{
{
{
×
×
×
{ = Enabled × = Disabled
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21.2 LED operation
Seven types of LEDs used to display the LSI operation states are controlled.
Table 11. shows the types and states of LEDs.
Table 11. Types of LEDs and operation description
Types of LEDs
LED_ERROR
LED_PLAY
LED_PSD
LED_PUSB
Operation description
Lights when an error occurs. This happens in the following cases:
(1) Neither USB memory nor SD memory card is connected. No supported file
exists even if these devices are connected.
(2) Communication error or disconnection occurs in the memory being played.
Lights during play. Blinks during pause.
Lights when SD memory card is connected and selected.
Blinks when SD memory card is connected but SD memory card is not selected.
Goes off when SD memory card is not connected.
Lights when USB memory is connected and selected.
Blinks when USB memory is connected but USB memory card is not selected.
Goes off when USB memory is not connected.
LED_ACCESS
Lights during access to USB memory or SD memory card.
LED_RANDOM
Lights during random play.
Lights during folder repeat.
all tunes in memory
LED_REPEAT
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22. MODE2
22.1 Command operation
You can operate commands via the I2C serial interface. When using the LSI in MODE2, it can be operated by
setting SEL_SLAVE to L. The length of command to be sent varies depending on which command is selected.
Table 12. shows the command specifications.
Table 13. shows enabled/disabled state of each command.
Table 12. Command Operation Description
Command
name
Comman
d byte
1st
length
Command
2nd
3rd
Operation description
4th-
PLAY
0x01
-
-
PAUSE
0x02
-
-
STOP
0x03
-
-
VOL+
0x04
-
-
0x50 0x05
-
-
REPEAT
0x06
-
-
RANDOM
0x07
-
-
VOL-
2
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
· When receiving “PLAY” command during stop, the master starts
playing the file currently selected. The order sorted from the
root folder is initially set.
· When receiving “PLAY” command during pause, the master
restarts playing the file from that point.
· When a state which disables MP3 decoding for more than 5
seconds during play, status “DECO_ERR” is set to H. MP3
decoding is continued.
· When receiving “PLAY” command during fast forward (or
backward) playing, the master restarts normal playing the file
from current point.
· When receiving “PAUSE” command during play, the master
stops playing the files temporarily.
· When receiving “STOP” command during play, pause or file
search, the master stops playing the file.
· When receiving “STOP” command during fast forward (or
backward) playing, the master stops playing the file.
· “STOP” command can be received even during BUSY.
· When SEL_VOL is set to H, “VOL+” command is enabled.
· When receiving “VOL+” command, the master controls sound
volume.
· Sound volume can be controlled at 32 steps from -∞ (minimum
volume) to 0dB (maximum volume).
· When SEL_VOL is set to H, “VOL-“command is enabled.
· When receiving “VOL-“command, the master controls sound
volume.
· Sound volume can be controlled at 32 steps from -∞ (minimum
volume) to 0dB (maximum volume).
· This command selects the mode during repeat.
· REPEAT command toggles like: “repeat all tunes in memory” Æ
“repeat one tune” Æ “repeat within folder”.
· When STATUS RPT_OFF is set as ON by "REPRAND"
command, REPEAT command toggles like: “all play in memory”
Æ “one file play” Æ “play within folder”. In this mode, it stops
upon completion of playing.
· When selecting “repeat within folder”, the master repeats files
within the folder being played.
· The initial setting is “repeat all tunes in memory”.
· The last setting to “REPRAND”, “REPEAT” and “RANDOM”
commands will be enabled.
· This command is as same as the “REPEAT” command in
MODE1.
· This key plays the range of ± 128 files from the current one
being played in the order of sort at random.
· When STATUS RPT_OFF is set as ON by "REPRAND"
command, REPEAT command toggles like: “one random file
play” Æ “all play with random in memory”. In this mode, it stops
upon completion of playing.
· The last setting to “REPRAND”, “REPEAT” and “RANDOM”
commands will be enabled.
· This command is as same as the “RANDOM” command in
MODE1.
33/66
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001
Datasheet
BU94601KV BU94603KV BU94604BKV
CHNG_DEV
0x08
-
-
ABORT
0x0C
-
-
SET_
RESUME_
INFO1
SET_
RESUME_
INFO2
SET_
RESUME_
INFO3
SET_
RESUME_
INFO4
SET_
RESUME_
INFO5
SET_
RESUME_
INFO6
0x41
0x42
0x43
0x44
0x45
8
0x46
SET_
RESUME_
INFO7
SET_
RESUME_
INFO8
FF
FF&PLAY
FFP_ON
FFP_OFF
0x51
4
RESUME
INFO
1byte-6byte
RESUME
INFO
7byte-12byte
RESUME
INFO
13byte-18byte
RESUME
INFO
19byte-24byte
RESUME
INFO
25byte-30byte
RESUME
INFO
31byte-36byte
· The command selects the device between USB memory and SD
memory card. To do this, both devices should be connected or
one device should correspond to the other (USB to SD or SD to
USB). Otherwise, this key operation is ignored.
· Stop after selecting the device at the top tune of the device.
· REPEAT and RANDOM settings return to the initial values.
· This command interrupts Tag analysis.
· It interrupts Tag analysis only the file is being played.
· This command sets byte 1 to 6 of 42-byte data obtained by
“READ_RESUME_INFO”.
· This command sets byte 7 to 12 of 42-byte data obtained by
“READ_RESUME_INFO”.
· This command sets byte 13 to 18 of 42-byte data obtained by
“READ_RESUME_INFO”.
· This command sets byte 19 to 24 of 42-byte data obtained by
“READ_RESUME_INFO”.
· This command sets byte 25 to 30 of 42-byte data obtained by
“READ_RESUME_INFO”.
· This command sets byte 31 to 36 of 42-byte data obtained by
“READ_RESUME_INFO”.
· This command sets byte 37 to 42 of 42-byte data obtained by
“READ_RESUME_INFO”. When RESUME reproduction is
RESUME
possible, play started that music. When RESUME is impossible,
0x47
INFO
play the head music of media is started.
37byte-42byte
· About some kind of setting of Resume Play, see Application
Note .
· This command sets byte 37 to 42 of 42-byte data obtained by
“READ_RESUME_INFO”. When RESUME reproduction is
RESUME
possible, it stops in the music. When RESUME is impossible, it
0x48
INFO
stops at the head of media.
37byte-42byte
· About some kind of setting of Resume Play, see Application
Note.
· When receiving FF command during play, pause or stop, the
master searches the next supported file in the order of sort of the
file being played or paused.
· During play of the last file, the master returns to the first file in
0x00
the order of sort.
· Operation stops upon completion of search.
· When TAG analysis is set by SEL_ID3 command, operation
stops upon completion of TAG analysis.
· When receiving ”FF&PLAY” command during play, pause or
stop, the master searches the next supported file in the order of
sort of the file being played or paused.
· During play of the last file, the master returns to the first file in
0x55 0x01 0x01 0x00
the order of sort.
· Operation starts playing, after completion of search.
· When TAG analysis is set by SEL_ID3 command, the master
plays the file upon completion of TAG analysis.
· When receiving FFP_ON command during play, pause or stop,
the master starts fast forward playing from current point.
· When music finishes into that FFP_ON command is ON, the
0x02
master starts fast forward playing from top of the next file. When
setting “REPEAT” or “RANDOM”, master search next file by
setup.
· When receiving FFP_OFF command during fast forward playing,
0x03
the master restarts normal playing from current point.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
34/66
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001
Datasheet
BU94601KV BU94603KV BU94604BKV
FB
0x00
· When receiving “FB” command during play, pause or stop within
1sec from top of file playing, the master searches the previous
supported file in the order of sort of files being played or paused.
When receiving “FB” command during play or pause over 1sec
from top of file playing, the master searches top of present file.
· The master returns to the last file during play of the first file
within 1sec from top of file playing.
· Upon completion of search, the operation stops.
· When TAG analysis is set by SEL_ID3 command, operation
stops upon completion of TAG analysis.
·· When receiving “FB&PLAY” command during play, pause or stop
within 1sec from top of file playing, the master searches the
previous supported file in the order of sort of files being played or
paused. When receiving “FB&PLAY” command during play or
pause over 1sec from top of file playing, the master searches top
of present file.
· The master returns to the last file during play of the first file
within 1sec from top of file playing.
· Operation starts playing, after completion of search.
· When TAG analysis is set by SEL_ID3 command, the master
plays the file upon completion of TAG analysis.
· When receiving FBP_ON command during play, pause or stop,
the master starts fast backward playing from current point.
· When music finishes into that FBP_ON command is ON, the
master starts fast backward playing from end of previous file.
When setting “REPEAT” or “RANDOM”, master search previous
file by setup.
· When receiving FBP_OFF command during fast backward
playing, the master restarts normal playing from current point.
0x00
· When receiving “FOL+” command during play, pause or stop, the
master searches the next folder in the order of sort of the folder
in which the file being played or paused exists.
· The master returns to the first folder in the order of sort during
play of the last folder.
· The operation stops upon completion of search.
· When TAG analysis is set by SEL_ID3 command, operation
stops upon completion of TAG analysis.
· When receiving “FOL+&PLAY” command during play, pause or
stop, the master searches the next folder in the order of sort of
the folder in which the file being played or paused exists.
· The master returns to the first folder in the order of sort during
play of the last folder.
· Operation starts playing, after completion of search.
· When TAG analysis is set by SEL_ID3 command, the master
plays the file upon completion of TAG analysis.
· When receiving “FOL-“ command during play, pause or stop, the
master search the next folder in the sort of the folder in which the
file being played or paused exists.
· During play of the first folder, the master returns to the last folder
in the order of sort.
· The operation stops upon completion of search.
· When TAG analysis is set by SEL_ID3 command, operation
stops upon completion of TAG analysis.
· When receiving “FOL-&PLAY“ command during play, pause or
stop, the master searches the next folder in the order of sort of
the folder in which the file being played or paused exists.
· During play of the top folder, the master returns to the first folder
in the order of sort.
· Operation starts playing, after completion of search.
· When TAG analysis is set by SEL_ID3 command, the master
plays the file upon completion of TAG analysis.
0x00
0x02
FB&PLAY
0x01
FBP_ON
0x02
FBP_OFF
0x03
FOL+
0x00
0x03
FOL+&PLAY
0x01
FOL-
0x00
0x04
FOL-&PLAY
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
0x01
35/66
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001
Datasheet
BU94601KV BU94603KV BU94604BKV
+10
0x00
0x05
+10&PLAY
0x01
-10
0x00
0x06
-10&PLAY
USB_
MNT_READY
0x01
4
0x5D 0x0B
0x01
0x00
SET_DOUT
4
0x51 0x20
0x01
0xFF
SET_EQ
* See Chapter
22.3.
2
0x00
0x01
0x02
0x03
0x04
0x52 0x05
0x07
0x08
0x09
0x0A
0x0B
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
-
· When receiving “+10” command during play, pause or stop, the
master searches the supported file of the 10th tune in the order of
sort of the file being played or paused.
· When the remaining files to be played are less than 10 in the
order of sort, the master returns to the first file.
· The operation stops upon completion of search.
· When TAG analysis is set by SEL_ID3 command, operation
stops upon completion of TAG analysis.
· When receiving “+10&PLAY” command during play, pause or
stop, the master searches the supported file of the 10th tune in
the order of sort of the file being played or paused.
· When the remaining files to be played are less than 10 in the
order of sort, the master returns to the first file.
· Operation starts playing, after completion of search.
· When TAG analysis is set by SEL_ID3 command, the master
plays the file upon completion of TAG analysis.
0x00 · When receiving “-10” command during play, pause or stop, the
master searches the supported file of the previous 10th tune in
the order of sort of the file being played or paused.
· When playing the top 10 or less files in the order of sort, the
master returns to the first file.
· The operation stops upon completion of search.
· When TAG analysis is set by SEL_ID3 command, operation
stops upon completion of TAG analysis.
· When receiving “-10&PLAY” command during play, pause or
stop, the master searches the supported file of the previous 10th
tune in the order of sort of the file being played, paused or
stopped.
· When playing the top 10 or less files in the order of sort, the
master returns to the first file.
· Operation starts playing, after completion of search.
· When TAG analysis is set by SEL_ID3 command, the master
plays the file upon completion of TAG analysis.
*Only BU94601KV/BU94603KV
· This command prepares for USB memory mount.
0x00
· Be sure to send this command when STATUS turns to
USB_INS=H and BUSY=L..
· This command outputs digital audio data as I2S (32fs) format.
0x58 · When SET_DOUT command is sent, SEL_DOUT terminal
setting is ignored
· This command outputs digital audio data as I2S (48fs) format.
0x59 · When SET_DOUT command is sent, SEL_DOUT terminal
setting is ignored
· This command outputs digital audio data as I2S (64fs) format.
0x5B · When SET_DOUT command is sent, SEL_DOUT terminal
setting is ignored
· This command outputs digital audio data as SPDIF format.
0x01 · When SET_DOUT command is sent, SEL_DOUT terminal
setting is ignored
· This command stops digital audio output (I2S, SPDIF).
0x00 · When SET_DOUT command is sent, SEL_DOUT terminal
setting is ignored
This command turns OFF the EQ setting.
POPS
JAZZ
ROCK
CLASSIC
R&B
This command turns OFF the EQ setting.
BASS BOOST1
POPS+BASS BOOST1
JAZZ+BASS BOOST1
ROCK+BASS BOOST1
-
36/66
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001
Datasheet
BU94601KV BU94603KV BU94604BKV
SET_VOL
REPRAND
SEL_ID3
SEL_TOC
2
2
2
2
0x53
0x0C
0x0D
0x0F
-
-
Setting
value
-
-
0x00
-
-
0x01
-
-
0x02
-
-
0x03
-
-
0x54 0x04
-
-
0x05
-
-
0x06
-
-
0x07
-
-
0x00
-
-
0x56
0x01
-
-
0x00
-
-
0x01
-
-
0x57
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
CLASSIC+BASS BOOST1
R&B+BASS BOOST1
BASS BOOST2
· This command sets the sound volume to the 2nd byte value of
the command. The setting value ranges 32 steps from 0x00 to
0x1F.
Any value outside of the above range is ignored.
· This command repeats all the tunes within the memory. This is
initially set.
· The last setting to “REPRAND”, “REPEAT” and “RANDOM”
commands will be enabled.
· The command repeats playing the file within the folder being
played.
· The last setting to “REPRAND”, “REPEAT” and “RANDOM”
commands will be enabled.
· This command repeats playing the file being played.
· The last setting to “REPRAND”, “REPEAT” and “RANDOM”
commands will be enabled.
· This command plays through the range of ±128 files in the order
of the sort from the current one being played at random.
· The last setting to “REPRAND”, “REPEAT” and “RANDOM”
commands will be enabled.
· This command plays all the tunes within the memory. STATUS
RPT_OFF is set as ON.
· It stops after the last file playing.
· The last setting to “REPRAND”, “REPEAT” and “RANDOM”
commands will be enabled.
· This command plays all the tunes within the folder being played.
STATUS RPT_OFF is set as ON.
· It stops after the last file playing within the folder.
· The last setting to “REPRAND”, “REPEAT” and “RANDOM”
commands will be enabled.
· This command plays one tunes. STATUS RPT_OFF is set as
ON.
· It stops after the file playing.
· The last setting to “REPRAND”, “REPEAT” and “RANDOM”
commands will be enabled.
· This command plays through the range of ±128 files in the order
of the sort from the current one being played at random.
STATUS RPT_OFF is set as ON.
· It stops after the file playing.
· The last setting to “REPRAND”, “REPEAT” and “RANDOM”
commands will be enabled.
· This command does not perform Tag analysis.
· The file played immediately after set will be enabled first.
· This command runs Tag analysis.
· The file played immediately after set will be enabled first.
· Upon completion of Tag analysis, the data is written to the status
register.
· This command does not perform TOC analysis.
· TOC analysis is not performed at initial setting.
· When receiving the command, inserting into the device or
changing the device, the master analyzes the total folders
(including root directory) and total supported files within the
device.
· The number of total supported files conforms to SEL_MP3
terminal.
· When receiving the command, only change from OFF to ON is
executed.
· Upon completion of TOC analysis, the master returns to the top
tune of the device and stops.
· After TOC analysis, the data is written to the status register.
37/66
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001
Datasheet
BU94601KV BU94603KV BU94604BKV
SEL_12MOUT
SEL_WDT
2
2
0x00
-
-
0x01
-
-
0x00
-
-
0x01
-
-
0x58
0x5A
SET_RPM
6
0x5B 0x00
SET_
RPM_ATT
4
0x5B 0x01 setting 0x00
SET_
UPLOAD_
FILE1
8
0x51 0x51
SET_
UPLOAD_
FILE2
8
0x51 0x52
UPLOAD_
END
2
0x51 0x53
SET_TOUT_M
4
0x5D 0x07
SET_TOUT_C
4
0x5D 0x08
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
setting
NAME[0:5]
NAME[6:7]
EXT[0:2]
-
-
· This command stops 12MHz clock output from CLKOUT12
terminal.
· This command enables 12 MHz clock output from CLKOUT12
terminal.
· This command stops WDT.
· This command writes “1” to STATUS WDT_RFLG.
· This command set up playtime and skiptime for fast forward
playing and fast backward playing. Fast forward and fast
backward playing repeat this cycle by making {playtime(M) +
skiptime(N) +error(O)} into 1 cycle. With an error, it depends on
the cajoled error between the minimum decoding unit and
playtime, and the real time which searches skiptime. Errors differ
by every file and every composition in memory.
· This command set up that playtime is M[15:0]=[4th byte, 3rd
byte] and skiptime are N[15:0]=[6th byte and 5th byte]. Initial
value set playtime is 300 mili second=M[15:0]=[4 th byte=x01,
3rd byte=x2C] and skiptime is 2100 mili second=N[15:0]=[6 th
byte=x08, 5 th byte=x34].
When command set up to 0x0, setting value is initial value.
The playtime should set up 300ms or more, and skiptime should
set up below (playtime x16).
· This command set up the attenuation level under fast forward
and backward playing.
An attenuation level serves as (-6dB X [3rd byte]).
A setup can be specified from 0x00 to 0x10.As for an initial
value, 0x02=-12dB is set up. It becomes equivalent to MUTE by
setup of 0x10.
Specify the part of the first half of the file name of the file for File
Read Function.
*Bury it by 0x20 when the file name(NAME) doesn't come up to
eight bytes.
Specify the part of the latter half of the file name of the file for File
Read Function.
*Bury it by 0x20 when the file name(NAME) doesn't come up to
eight bytes.
Bury it by 0x00 when the file extension doesn't come up to three
bytes.
It targets neither the file name comparison since 0x00 of the end in
the comparison.
The File Read function is ended.
Transmit after completing the file reading.
The ACK timeout of the command under memory mount is set up.
The set point x100 (msec) is timeout. At the time, XX is upper byte
and YY is lower byte.
0xYY 0xXX An initial value is 30 sec (YY=0x2C, XX=0x01), and maximum
value is 60 sec (YY=0x58, XX=0x02).If set point is over the
maximum value, this command is ignored.
Mount ERROR will be carried out if a timeout occur.
The ACK timeout of the commands at the time of PLAY or STOP or
PAUSE (except during mount) is set up.
The set point x100 (msec) is timeout. At the time, XX is upper byte
and YY is lower byte.
0xYY 0xXX
An initial value is 5 sec (YY=0x32, XX=0x00), and maximum value
is 60 sec (YY=0x58, XX=0x02). If set point is over the maximum
value, this command is ignored.
Communication ERROR will be carried out if a timeout occur.
38/66
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001
Datasheet
BU94601KV BU94603KV BU94604BKV
SET_
USB_R_
WAIT
4
0x5D 0x09
0xXX
0x00
GET_
VENDOR
2
0x5F 0x16
-
-
FORCE_
DISCON_USB
2
0x5D 0x02
-
-
FORCE_
CON_USB
2
0x5D 0x0A
-
-
FORCE_
DISCON_SD
4
0x5D 0x0C
0x01
0x00
FORCE_
CON_SD
4
0x5D 0x0C
0x00
0x00
SET_LUN
4
0x5D 0x0D setting 0x00
RESET_LUN
2
0x5D 0x0E
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
-
-
The wait time after bus reset is set up at the time of USB memory
recognition.
The set point (XX) x200 (msec) is wait time.
An initial value is 600 msec (XX=0x03), and maximum value is
51.2 sec (XX=0xFF).
A vendor code and Product ID are stored in COMAREA.
Please read COMAREA after GET_VENDOR command
transmission and acquire code data.
Offset
0x20:Vendor code Lower byte
0x21:Vendor code Upper byte
0x22:Product code Lower byte
0x23:Product code Upper byte
Force mounted USB memory to be disconnected.
Mounts USB memory again, which Mount ERROR occurred.
Force SD memory to be disconnected, which Mount ERROR
occurred
Mounts SD memory again, which was disconnected by
FORCE_DISCON_SD command.
LUN, which USB memory mounts, is specified.
LUN specified at the time of USB connection mounts.
When another LUN is already mounted, it re-mounts to specified
LUN.
When not specifying LUN, effective LUN becomes an AUTO setup
and LUN detected first is mounted at the time of USB memory
connection.
(Initial value)
Effective LUN is set to AUTO and LUN detected first comes to be
mounted at the time of USB memory connection.
39/66
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001
Datasheet
BU94601KV BU94603KV BU94604BKV
Table 13. Command Enabled/Disabled in Various States
PLAY
PAUSE
After recognizing
device, search or
During play of device
pause
Search During
FFP
Recognize Recognize Recognize Recognize ing
either USB either USB either USB both USB
or SD
or SD
or SD
and SD
○
○
×
×
×
○
×
×
Error
During
FBP Recognize Recognize
either USB both USB
or SD
and SD
○
×
×
○
○
×
○
○
×
×
STOP
×
×
○
○
○
○
○
×
×
VOL+
○
○
○
○
×
○
○
○
○
VOL-
○
○
○
○
×
○
○
○
○
REPEAT
○
○
○
○
×
○
○
×
×
RANDOM
○
○
○
○
×
○
○
×
×
CHNG_DEV
×
○
×
○
×
○
○
×
○
ABORT
SET_RESUME_
INFO1-8
FF
×
×
×
×
○
×
×
×
×
○
○
○
○
×
×
×
×
×
○
○
○
○
×
×
×
×
×
FF&PLAY
○
○
○
○
×
×
×
×
×
FFP_ON
×
×
○
○
×
○
○
×
×
FFP_OFF
×
×
×
×
×
○
×
×
×
FB
○
○
○
○
×
×
×
×
×
FB&PLAY
○
○
○
○
×
×
×
×
×
FBP_ON
×
×
○
○
×
○
○
×
×
FBP_OFF
×
×
×
×
×
×
○
×
×
FOL+
○
○
○
○
×
×
×
×
×
FOL+&PLAY
○
○
○
○
×
×
×
×
×
FOL-
○
○
○
○
×
×
×
×
×
FOL-&PLAY
○
○
○
○
×
×
×
×
×
+10
○
○
○
○
×
×
×
×
×
+10&PLAY
○
○
○
○
×
×
×
×
×
-10
○
○
○
○
×
×
×
×
×
-10&PLAY
○
○
○
○
×
×
×
×
×
USB_MNT_READY
○
○
○
○
○
○
○
○
○
SET_DOUT
○
○
○
○
×
○
○
○
○
SET_EQ
○
○
○
○
×
○
○
○
○
SET_VOL
○
○
○
○
×
○
○
○
○
REPRAND
○
○
○
○
×
○
○
×
×
SEL ID3
○
○
○
○
×
○
○
×
×
SEL_TOC
○
○
○
○
×
○
○
×
×
SEL 12MOUT
○
○
○
○
×
○
○
○
○
SET_WDT
○
○
○
○
×
○
○
○
○
SET_RPM
○
○
○
○
×
○
○
○
○
SET_RPM_ATT
○
○
○
○
×
○
○
○
○
SET_UPLOAD_FILE1
After recognizing the USB memory, only the halt condition is the command effective.
SET_UPLOAD_FILE2
UPLOAD_END
SET_TOUT_M
○
○
○
○
×
○
○
○
○
○
SET_TOUT_C
○
○
○
○
×
○
○
○
SET_USB_RWAIT
○
○
○
○
×
○
○
○
○
GET_VENDOR
FORCE_DISCON_USB
○
○
○
○
×
○
○
○
○
○
○
○
○
○
○
○
×
×
FORCE_CON_USB
×
×
×
×
×
×
×
○
○
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FORCE_DISCON_SD
×
×
×
×
×
×
×
○
○
○
FORCE_CON_SD
×
×
×
×
×
×
×
○
SET_LUN
○
○
○
○
×
○
○
○
○
○
○
○
×
○
○
○
○
RESET_LUN
○
○= Enabled × = Disabled
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22.2 Status output
The operation information, such as internal status, play time information, folder information, file information,
ID3Tag information, AACTag information and WMATag information, is output using an I2C interface.
Statuses as shown in Table 14. MODE 2 Status Register Map are output.
The status register has a ring buffer structure of OFFSET 0x00-0x7F. The OFFSET position is automatically
incremented after reading byte data.
Status read specifies OFFSET of the status register map. There are two methods available: to read a desired
number of bytes continuously from the OFFSET position and to read the data by one command without
specifying the OFFSET position. Figure 15. shows the status output commands. Table 16. shows the
enabled/disabled state of the status output commands.
Status register outputs a byte data of OFFSET 0x00-0x7F by "Little Endian" format. (Exception exists when
using READ_ID3_TITLE, READ_ID3_ARTIST, and READ_ID3_ALBUM command. See Table 15. MODE2
Status Output Commands)
Table 14. MODE2 Status Register Map
OFFSET
Status
bit7
(MSB)
bit6
bit5
0x00
STATUS1
ERROR
0: No error
1: Error occurs
SEARCH
0: Search stop
1: Searching
SEL_ID3
0: ID3Tag OFF
1: ID3Tag ON
STATUS2
USBINS
0: USB not
connected
1: USB
connection
detected
SDINS
0: SD not
connected
1: SD connection
detected
USBFILE
Playable file within
USB memory
0: Absent
1: Present
0
ID3EXIST
TAG information
0: Not exist
1: Exist
0
0
0x01
0x02
STATUS3
BUSY
0: Not BUSY
1: BUSY
MCHNG
Tune number
change detection
0: Tune
ended/stopped
1: Playing/
stop before
playing
0x03
STATUS4
0
0
0x04
STATUS5
12MOUT
12 MHz clock
output
0: OFF
1: ON
WDT_RFLG
0: after RESET
0x05
VOLINF
0
0
0x06
PRECOM
0x08
DOUT
bit3
bit2
bit1
SEL_TOC
DEC_ERR
STOP
PAUSE
0: TOC display
0: No error 0: Not stopped 0: Not paused
OFF
1: Error occurs 1. Stopping
1: Pausing
1: TOC display ON
bit0
(LSB)
Play
0: Not played
1: Playing
PDEVUSB
PDEVSD
SDFILE
MDEVUSB
MDEVSD
PDEVUSB USB PDEVUSB SD
Playable file within USB memory SD memory
memory
memory
SD memory
0: Not
0: Not
0: Stopping
0: Stopping
0: Absent
recognized
recognized
1: Playing/Tag 1: Playing/Tag
1: Present
1: Recognized 1: Recognized
analyzing
analyzing
WMAPLAY
Play file information *
0: MP3
1: WMA , 2: AAC
3:Device with 2 configurations or more
TINFSD
TINFUSB
Total number
Total number of
of folders/files
folders/files
within SD
within USB
memory
memory
0: Not
0: Not obtained
obtained
1: Obtained
1: Obtained
RPT_OFF
RANDOM
REP1
REPFOL
Setting after Random play One-tune repeat Folder repeat
last file playing
setting
setting
setting
0: repeat
0: OFF
0: OFF
0: OFF
1: stop
1: ON
1: ON
1: ON
ID3RSID1
ID3Tag
Version1
0: Absent
1: Present
ID3RSID2
ID3Tag
Version2
0: Absent
1: Present
FBP
FFP
Fast backward Fast forward
playing
playing
0: OFF
0: OFF
1: ON
1: ON
0
RES_ERR
Resume error
0: No error
1: Error
occurs
0
0
0
0
0
DOUT
Audio output
0: LINE output
1: I2S / SPDIF
VOLINF
Sound volume information
[ 4: 0 ]
0
EQINF
Equalizer setting information
0000: OFF
0001: POPS
0010: JAZZ
0011: ROCK
0100: CLASSIC
0101: R&B
1000: BASS BOOST
1001: POPS+BASS
1010: JAZZ+BASS
1011: ROCK+BASS
1100: CLASSIC+BASS
1101: R&B+BASS
1111 BASS BOOST2
EQINF
0x07
bit4
0
PRECOM
Previous Command information
0: normal
1: miss
HUB
Un Support device Vendor code
Detection Flag Detection Flag
Detection Flag
0: Not Detection 0: Not Detection 0: Apple Not Detection
1: Detection
1: Detection
1: Apple Detection
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BU94601KV BU94603KV BU94604BKV
0x09
DOUTINF
DOUTINF
I2S format status
0x58: 32fs(Initial value)
0x59: 48fs
0x5B: 64fs
0x00: OFF
0x01: SPDIF output
0x0A
PFOLNL
PFOLNL
Playing folder number lower-order byte
[7:0]
0x0B
PFOLNH
PFOLNH
Playing folder number upper-order byte
[15:8]
0x0C
PFILENL
PFILENL
Playing file number lower-order byte
[7:0]
0x0D
PFILENH
PFILENH
Playing file number upper-order byte
[15:8]
0x0E
PSEC
Playing time second information
[7:4]x10 sec.
Playing time second information
[3:0]x1 sec.
0x0F
PMIN
Playing time minute information
[7:4]x10 min.
Playing time minute information
[3:0]x1 min.
0x10
TFOLUSBL
TFOLUSBL
USB memory total folder number lower -order byte
[7:0]
0x11
TFOLUSBH
TFOLUSBH
USB memory total folder number upper-order byte
[15:8]
0x12
TFILEUSBLL
TFILEUSBLL
USB memory total file number lower -order byte [15:0]
[7:0]
0x13
TFILEUSBLH
TFILEUSBLH
USB memory total file number upper-order byte [15:0]
[15:8]
0x14
TFILEUSBHL
TFILEUSBHL
USB memory total file number lower -order byte [31:16]
[23:16]
0x15
TFILEUSBHH
TFILEUSBHH
USB memory total file number upper-order byte [[31:16]
[31:24]
0x16
TFOLSDL
TFOLSDL
SD memory total folder number lower -order byte
[7:0]
0x17
TFOLSDH
TFOLSDH
SD memory total folder number upper-order byte
[15:8]
0x18
TFILESDL
TFILESDLL
SD memory total file number lower -order byte [15:0]
[7:0]
0x19
TFILESDLH
TFILESDLH
SD memory total file number upper-order byte [15:0]
[15:8]
0x1A
TFILESDHL
TFILESDHL
SD memory total file number lower -order byte [31:16]
[23:16]
0x1B
TFILESDHH
TFILESDHH
SD memory total file number upper-order byte [31:16]
[31:24]
0x1C
LANGL
LANGL
Language code information lower -order byte [7:0]
0x1D
LANGH
LANGH
Language code information upper -order byte [15:8]
0x20
|
0x7F
COMAREA
COMAREA
Data common area
The content varies depending on the status read command.
* Play file information: The value is 0 when BU94601KV. “3: Device with 2 configurations or more” is supported only by BU94604BKV.
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Table 15. MODE2 Status Output Commands
Command
Status output
Status
Command name
bytes
1st byte 2nd byte
· The command outputs the desired bytes
of data from the OFFSET position
specified in the status register map.
· Since the status register functions as a
READ_BUFF
0x5E
OFFSET
Optional
ring buffer of 0x00-0x7F, the master
returns to 0x00 after OFFSET position
0x7F during data read.
· This command outputs the data of
READ_STATUS
0x00
5
OFFSET 0x00-0x04 in the status buffer.
· This command outputs the data of
READ_PLAY_INFO
0x01
6
OFFSET 0x0A-0x0F in the status buffer.
· This command outputs the data of
READ_VOL
0x02
1
OFFSET 0x05 in the status buffer.
· This command outputs the data of
READ_EQ
0x03
1
OFFSET 0x06 in the status buffer.
· This command outputs the data of
READ_ID3_TITLE
0x04
64
Tag Title. *1
· This command outputs the data of
READ_ID3_ARTIST
0x05
64
Tag Artist.*1
· This command outputs the data of
READ_ID3_ALBUM
0x06
64
Tag Album.*1
· This command outputs the data of
READ_FILE_NAME
0x07
64
playing file name. see 20.4
· This command outputs the data of
READ_FOLDER_NAME
0x08
64
folder name includes playing file. see
20.4
· This command outputs the data to
READ_RESUME_INFO
0x09
42
resume.
* See Chapter 22.4.
see 22.4
· This command outputs the data of
READ_VERSION
0x10
1
Firmware version.
0x5F
· The size of a specified file of the File
Read function is acquired. It outputs
with LittleEndian.
READ_FILE_SIZE
0x11
4
· When the file doesn't exist, "0xFF, 0xFF,
0xFF, and 0xFF" is output.
· The file data of a specified file of the File
Read function is read.
· The 92byte data reading is possible
READ_FILE_DATA
0x12
96
by one time.
· Four head bytes are file offsets. It
outputs it with LittleEndian.
· In case of AUTO detection mode of
LUN,LUN of mounted USB memory can
be read.
· If LUN is specified using the "SET_LUN"
command, specified LUN of mounted
USB memory can be read. But if failed
READ_LUN
0x17
1
to mount, 0xFF is read.
· Attention) When memory connected to
multi-card reader is removed or
re-inserted, LUN read by this command
is NOT correct until mount of re-inserted
media is completed.
· Read the total of LUN of the USB
READ_LUN_NUM
0x18
1
memory which is connected now.
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·
READ_SET_LUN
0x19
1
Read LUN specified by the "SET_LUN"
command.
In not setting up, 0xFF is read.
*1:BOM(Byte Order Mark) might enter two head bytes according to ID3 data. Status register outputs byte data by "Big Endian" format when WMA tag
reading.
Table 16. Command Enabled/Disabled in Various States
After recognizing During
device (stopping play of Searching
after searching) device
Error
READ_BUFF
○
○
○
○
READ_STATUS
○
○
○
○
READ_PLAY_INFO
○
○
×
READ_VOL
○
○
×
×
○
READ_EQ
○
○
×
○
READ_ID3_TITLE
○
○
×
×
READ_ID3_ALBUM
○
○
×
×
○
○
×
×
READ_ID3_ARTIST
READ_FILE_NAME
○
○
×
×
READ_FOLDER_NAME
○
○
×
×
READ_RESUME_INFO
○
○
×
×
READ_VERSION
○
○
×
×
READ_FILE_SIZE
READ_FILE_DATA
READ_LUN
After recognizing the USB memory, only the
halt condition is the command effective.
○
○
×
○
READ_LUN_NUM
○
○
×
○
READ_SET_LUN
○
○
×
○
{ = Enabled, × = Disabled
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22.3 Equalizer
You can select 5 types of equalizer and 2 types of BassBoost for the audio line output using a command (see
Table 7). Combination of equalizer and BassBoost1 is available.
Clipping may occur by the combination of volume and equalizer setting.
Equalizer setting is enabled even when line output is not selected. No change of sound quality by the equalizer
is found in digital outputs.
Figures 28 to 33 show the frequency characteristics of each filter.
POPS
20
15
POPS(0x52, 0x01)
POPS+BassBoost1(0x52, 0x09)
Mag.(dB)
10
5
0
-5
-10
10
100
1000
10000
100000
Freq.(Hz)
Figure 28 POPS Frequency Characteristics
JAZZ
20
15
JAZZ(0x52, 0x02)
JAZZ+BassBoost1(0x52, 0x0A)
Mag.(dB)
10
5
0
-5
-10
10
100
1000
10000
100000
Freq.(Hz)
Figure 29 JAZZ Frequency Characteristics
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Rock
20
15
ROCK(0x52, 0x03)
ROCK+BassBoost1(0x52, 0x0B)
Mag.(dB)
10
5
0
-5
-10
10
100
1000
10000
100000
Freq.(Hz)
Figure 30 ROCK Frequency Characteristics
Classic
20
15
CLASSIC(0x52, 0x04)
CLASSIC+BassBoost1(0x52, 0x0C)
Mag.(dB)
10
5
0
-5
-10
10
100
1000
10000
100000
Freq.(Hz)
Figure 31 CLASSIC Frequency Characteristics
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R&B
20
15
R&B(0x52, 0x05)
R&B+BassBoost1(0x52, 0x0D)
Mag.(dB)
10
5
0
-5
-10
10
100
1000
10000
100000
Freq.(Hz)
Figure 32 R&B
BassBoost
20
15
BassBoost1(0x52, 0x08)
BassBoost2(0x52, 0x0F)
Mag.(dB)
10
5
0
-5
-10
10
100
1000
10000
100000
Freq.(Hz)
Figure 33 Bass Boost
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22.4 Resume information
This LSI outputs the information required to implement the resume function using the “READ_RESUME_INFO”
command.
Table 17. shows the resume information status register structure.
Table 17. Resume Information Register Structure
Status
OFFSET
0x20-0x49
Resume information
Resume Information data
[42 bytes]
i.Resume Information data :
Shows the file’s information and play’s information now.
This is a number uniquely set to the LSI.
Since the above 42-byte resume information is used to execute resume play, do not change the contents before
use. When you use changed contents, the action cannot assure.
You can implement the resume function by reading the resume information read using the
“READ_RESUME_INFO” command and then writing the information using the “SET_RESUME_INFO1-7”
command. After “SET_RESUME_INFO1-7” is all written, the LSI automatically searches and plays a resume
file from the time, which read “READ_RESUME_INFO” command upon completion of writing of
“SET_RESUME_INFO7”.
22.5 Language Code Information
This LSI outputs Language Code Information to Status register. (OFFSET=0x1C and 0x1D)
Table 18. shows the Language Code information status register structure.
Table 18. Language Code Information Register Structure
LANGH
OFFSET=0x1D
LANGL
OFFSET=0x1C
0x00
0x00
0x00
0x00
0x00
0x00
0x01
0x02
0x03
0x49
Language Code
ID3V1 TAG or ISO8859-1 (ID3V2 TAG)
UTF-16 (ID3V2 TAG)
UTF-16BE (ID3V2 TAG)
UTF-8 (ID3V2 TAG or AAC TAG iTunes Meta-data) *
UTF-16LE (WMA TAG) *
*BU94601KV doesn’t support WMA/AAC Tag.
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23. MODE3
MODE3 specifies and plays the file to be played by the master microcomputer by outputting the file/folder status
information, written to USB memory or SD memory card, to the master microcomputer.
23.1 Command operation
The LSI sends commands to obtain the file/folder information in USB memory or SD memory card, to analyze
ID3Tag, to analyze WMATag, to analyze AACTag, and to set a file to be played and start playing it.
Table 19. shows the commands available in MODE3. When sending a command other than listed below in
MODE3, it is ignored.
Table 19. MODE3 Command
Command name
Command
byte
1st
length
PAUSE
STOP
Command
2nd
3rd-
0x02
-
0x03
VOL+
0x04
VOL-
0x05
CHNG_DEV
Operation description
-
-
-
· When SEL_VOL is set to H, “VOL-“command is enabled.
· When receiving “VOL-“command, the master controls
sound volume.
· Sound volume can be controlled at 32 steps from -∞
(minimum volume) to 0dB (maximum volume).
-
GET_DIRECT
0x09
-
GET_NUMBER
0x0A
-
GET_ID3
0x0B
-
0x50
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· This command stops the operations of Tag analysis.
· This command stops playing file and stop at top of this file.
· When SEL_VOL is set to H, “VOL+” command is enabled.
· When receiving “VOL+” command, the master controls
sound volume.
· Sound volume can be controlled at 32 steps from -∞
(minimum volume) to 0dB (maximum volume).
0x08
2
· When receiving “PAUSE” command during play, the master
stops playing file temporarily.
· The command selects the device between USB memory
and SD memory card. To do this, both devices should be
connected or one device should correspond to the other
(USB to SD or SD to USB). Otherwise, this command is
ignored.
· After selecting the device, the LSI waits for a command.
· This command obtains the folder information (*see 23.3)
and file information (*see 23.3) for the folder set by
SET_DIRECT.
· Read the information using the status commands
“READ_FOLDER_INFO” and “READ_FILE_INFO”.
· The status of “ANA_END”, “FOLINF”, “FILINF”, “FOLFULL”
and “FILFULL” are reset.
· This command obtains the number of files and folders for
the folder set by SET_DIRECT.
· Read the information using status command
“READ_NUMBER”.
· The number of unsupported files is ignored.
· The statuses of “ANA_END” are reset.
· This command performs TAG analysis for the valid file set
by SET_DIRECT.
· The command also analyzes even if the folder is not
specified. However, at the end of analysis, a status in
which Tag information is not contained will be output.
- The statuses of “ID3EXIST”, “ID3RSID1” and “ID3RSID2”
are reset.
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ABORT
PLAY_DIRECT
USB_
MNT_READY
4
SET_DOUT
4
SET_NUMBER
6
SET_
RESUME_
INFO1
SET_
RESUME_
INFO2
SET_
RESUME_
INFO3
SET_
RESUME_
INFO4
SET_
RESUME_
INFO5
SET_
RESUME_
INFO6
· This command stops the operations of Tag analysis, folder
analysis and file analysis.
· The statuses of “ANA_END”, “FOLINF”, “FILINF”,
0x0C
“FOLFULL”, “FILFULL”, "ID3EXIST", "ID3RSID1" and
"ID3RSID2" are reset.
· This command starts playing the AAC/WMA/MP3 file set by
SET_DIRECT.
· The command plays the file even when the preset file is not
0x0D
an supported file or when the folder is specified, the
command plays the specified one. If MP3 decode
disabled is detected for 5 seconds or longer, the command
outputs status "DECO_ERR"=H.
*Only BU94601KV/BU94603KV
· This command prepares for USB device mount.
0x5D 0x0B 0x01 0x00
· Be sure to send this command when STATUS turns to
USB_INS=H and BUSY=L..
· This command outputs digital audio data as I2S (32fs)
format.
0x58
· When SET_DOUT command is sent, SEL_DOUT terminal
setting is ignored
· This command outputs digital audio data as I2S (48fs)
format.
0x00 0x59
· When SET_DOUT command is sent, SEL_DOUT terminal
setting is ignored
· This command outputs digital audio data as I2S (64fs)
0x20
format.
0x5B
· When SET_DOUT command is sent, SEL_DOUT terminal
setting is ignored
0x51
· This command outputs digital audio data as SPDIF format.
0x01 0x01 · When SET_DOUT command is sent, SEL_DOUT terminal
setting is ignored
· This command stops digital audio output (I2S, SPDIF).
0xFF 0x00 · When SET_DOUT command is sent, SEL_DOUT terminal
setting is ignored
· This command sets the number of obtained folders for
those set by SET_DIRECT.
· Parameter: “Number of obtained folders: 2 bytes” +
0x21
0xXX
“Number of obtained files: 2 bytes”. By specifying “0”, all
the folders and files are obtained.
RESUME · This command sets byte 1 to 6 of 42-byte data obtained by
“READ_RESUME_INFO”.
0x41
INFO
1byte-6byte
· This command sets byte 7 to 12 of 42-byte data obtained
RESUME
by “READ_RESUME_INFO”.
0x42
INFO
7byte-12byte
RESUME
0x43
8
· This command sets byte 13 to 18 of 42-byte data obtained
by “READ_RESUME_INFO”.
13byte-18byte
0x51
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
INFO
RESUME
0x44
INFO
· This command sets byte 19 to 24 of 42-byte data obtained
by “READ_RESUME_INFO”.
19byte-24byte
RESUME
0x45
INFO
· This command sets byte 25 to 30 of 42-byte data obtained
by “READ_RESUME_INFO”.
25byte-30byte
RESUME
0x46
INFO
· This command sets byte 31 to 36 of 42-byte data obtained
by “READ_RESUME_INFO”.
31byte-36byte
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BU94601KV BU94603KV BU94604BKV
SET_
RESUME_
INFO7
SET_
RESUME_
INFO8
SET_EQ
*See Chapter
22.3.
2
SET_VOL
FFP_ON
· This command sets byte 37 to 42 of 42-byte data obtained
by “READ_RESUME_INFO”. When RESUME reproduction
RESUME
is possible, play started that music. When RESUME is
INFO
0x47
impossible, play the head music of media is started.
37byte-42byte
· About some kind of setting of Resume Play, see Application
Note.
· This command sets byte 37 to 42 of 42-byte data obtained
by “READ_RESUME_INFO”. When RESUME reproduction
RESUME
is possible, it stops in the music. When RESUME is
INFO
0x48
impossible, it stops at the head of media.
37byte-42byte
· About some kind of setting of Resume Play, see Application
Note.
0x00
· This command turns OFF EQ setting.
0x01
· POPS
0x02
· JAZZ
0x03
· ROCK
0x04
· CLASSIC
0x05
· R&B
0x07
· This command turns OFF EQ setting.
0x52
0x08
· BASS BOOST
0x09
· POPS+BASS
0x0A
· JAZZ+BASS
0x0B
· ROCK+BASS
0x0C
· CLASSIC+BASS
0x0D
· R&B+BASS
0x0F
· BASS BOOST2
· Set sound volume the second byte value of the command.
Setting
0x53
The setting values are 32 steps ranging from 0x00 to 0x1F.
value
· A value specified outside the above range will be ignored.
. Start the fast-forwarding playback from a present playback
0x02 0x00
position by this command of playbacking and pausing.
0x01
FFP_OFF
4
0x03 0x00
. Stop the fast-forwarding playback by this command
fast-forwarding playback, and usually playback.
0x02 0x00
. Start the rewinding playback from a present playback
position by this command of playbacking and pausing.
0x03 0x00
. Stop the rewinding playback by this command rewinding
playback, and usually playback.
0x55
FBP_ON
0x02
FBP_OFF
SEL_12MOUT
2
0x00
-
· This command stops 12 MHz clock output from CLKOUT12
terminal.
· This command enables 12 MHz clock output from
CLKOUT12 terminal.
· This command specifies the current position of the
folder/file by specifying the folder/file information access
data (6 bytes).
· Specify access data (6 bytes) at 0xXX.
· By specifying “0”, the position is set to the root folder.
· This command stops Watch Dog Timer.
0x01
-
· This command writes “1” to STATUS WDT_RFLG.
0x00
-
0x01
-
0x58
SET_DIRECT
8
0x59 0x00
SET_WDT
2
0x5A
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
0xXX
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BU94601KV BU94603KV BU94604BKV
SET_RPM
6
0x5B
SET_RPM_ATT
4
0x5B
SET_
UPLOAD_FILE1
8
0x51
SET_
UPLOAD_FILE2
8
0x51
UPLOAD_END
2
0x51
SET_TOUT_M
4
0x5D
SET_TOUT_C
4
0x5D
SET_USB_
R_WAIT
4
0x5D
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
· This command set up playtime and skiptime for fast forward
playing and fast backward playing. Fast forward and fast
backward playing repeat this cycle by making {playtime(M)
+ skiptime(N) +error(O)} into 1 cycle. With an error, it
depends on the cajoled error between the minimum
decoding unit and playtime, and the real time which
searches skiptime. Errors differ by every file and every
composition in memory.
setting
0x00
· This command set up that playtime is M[15:0]=[4th byte,
3rd byte] and skiptime are N[15:0]=[6th byte and 5th byte].
Initial value set playtime is 300 mili second=M[15:0]=[4 th
byte=x01, 3rd byte=x2C] and skiptime is 2100 mili
second=N[15:0]=[6 th byte=x08, 5 th byte=x34].
When command set up to 0x0, setting value is initial value.
The playtime should set up 300ms or more, and skiptime
should set up below (playtime x16).
· This command set up the attenuation level under fast
forward and backward playing.
An attenuation level serves as (-6dB X [3rd byte]).
0x01 setting 0x00
A setup can be specified from 0x00 to 0x10.As for an initial
value, 0x02=-12dB is set up. It becomes equivalent to
MUTE by setup of 0x10.
Specify the part of the first half of the file name of the file for
File Read Function.
0x51 NAME[0:5]
*Bury it by 0x20 when the file name(NAME) doesn't come up
to eight bytes.
Specify the part of the latter half of the file name of the file for
File Read Function.
*Bury it by 0x20 when the file name(NAME) doesn't come up
NAME[6:7] to eight bytes.
0x52
Bury it by 0x00 when the file extension doesn't come up to
EXT[0:2]
three bytes.
It targets neither the file name comparison since 0x00 of the
end in the comparison.
The File Read function is ended.
0x53
Transmit after completing the file reading.
The ACK timeout of the command under memory mount is set
up.
The set point x100 (msec) is timeout. At the time, XX is upper
byte and YY is lower byte.
0x07 0xYY 0xXX
An initial value is 30 sec (YY=0x2C, XX=0x01), and maximum
value is 60 sec (YY=0x58, XX=0x02).If set point is over the
maximum value, this command is ignored.
Mount ERROR will be carried out if a timeout occur.
The ACK timeout of the commands at the time of PLAY or
STOP or PAUSE (except during mount) is set up.
The set point x100 (msec) is timeout. At the time, XX is upper
byte and YY is lower byte.
0x08 0xYY 0xXX
An initial value is 5 sec (YY=0x32, XX=0x00), and maximum
value is 60 sec (YY=0x58, XX=0x02). If set point is over the
maximum value, this command is ignored.
Communication ERROR will be carried out if a timeout occur.
The wait time after bus reset is set up at the time of USB
memory recognition.
0x09 0xXX 0x00 The set point (XX) x200 (msec) is wait time.
An initial value is 600 msec (XX=0x03), and maximum value
is 51.2 sec (XX=0xFF).
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BU94601KV BU94603KV BU94604BKV
2
0x5F 0x16
-
-
2
0x5D 0x02
-
-
A vendor code and Product ID are stored in COMAREA.
Please read COMAREA after GET_VENDOR command
transmission and acquire code data.
Offset
0x20:Vendor code Lower byte
0x21:Vendor code Upper byte
0x22:Product code Lower byte
0x23:Product code Upper byte
Force mounted USB memory to be disconnected.
2
0x5D 0x0A
-
-
Mounts USB memory again, which Mount ERROR occurred.
4
0x5D 0x0C 0x01 0x00
FORCE_
CON_SD
4
0x5D 0x0C 0x00 0x00
SET_LUN
4
0x5D 0x0D setting 0x00
RESET_LUN
2
0x5D 0x0E
GET_ VENDOR
FORCE_
DISCON_USB
FORCE_
CON_USB
FORCE_
DISCON_SD
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
-
-
Force SD memory to be disconnected, which Mount ERROR
occurred
Mounts SD memory again, which was disconnected by
FORCE_DISCON_SD command.
LUN, which USB memory mounts, is specified.
LUN specified at the time of USB connection mounts.
When another LUN is already mounted, it re-mounts to
specified LUN.
When not specifying LUN, effective LUN becomes an AUTO
setup and LUN detected first is mounted at the time of USB
memory connection.
(Initial value)
Effective LUN is set to AUTO and LUN detected first comes to
be mounted at the time of USB memory connection.
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Datasheet
BU94601KV BU94603KV BU94604BKV
Table 20. Command Enabled/Disabled in Various Statuses
After recognizing device
During play of device
*
PAUSE
Error
Searching
Recognize
either USB
or SD
Recognize
both USB
and SD
Analyzing
Recognize
either USB
or SD
Recognize
both USB
and SD
×
×
×
○
○
○
×
○
Recognize
either USB
or SD
Recognize
both USB
and SD
×
×
×
○
×
VOL+
×
○
○
×
○
○
×
×
○
×
○
VOL-
○
○
×
○
○
×
○
○
CHNG_DEV
×
○
○
×
×
○
×
×
○
GET_DIRECT
○
×
×
×
×
×
×
GET_NUMBER
○
○
×
×
×
×
○
○
×
×
×
×
ABORT
×
○
×
○
×
○
×
-
×
GET_ID3
×
×
○
×
×
○
○
○
○
×
○
○
×
○
○
×
○
×
×
○
○
×
○
○
○
○
×
○
×
×
○
×
○
×
○
×
×
×
○
○
STOP
PLAY_DIRECT
USB_MNT_READY
SET_DOUT
SET_NUMBER
SET_RESUME_
INFO1-7
SET_EQ
×
×
×
×
×
×
○
○
×
○
○
○
○
SET_VOL
×
×
×
○
×
○
FFP_ON
×
×
×
○
○
×
×
×
○
FFP_OFF
×
×
×
○
×
×
×
FBP_ON
×
×
×
○
○
×
×
×
FBP_OFF
×
○
×
○
○
×
SEL 12MOUT
×
○
×
○
○
×
×
○
×
○
SET_DIRECT
○
○
×
SET_WDT
○
×
×
○
×
○
×
○
×
×
○
×
○
SET_RPM
○
○
×
○
○
×
×
×
SET_RPM_ATT
○
○
×
○
○
×
×
×
SET_UPLOAD_FILE1
SET_UPLOAD_FILE2
After recognizing the USB memory, only the halt condition is the command effective.
UPLOAD_END
SET_TOUT_M
○
○
×
○
○
×
○
○
SET_TOUT_C
○
○
×
○
○
×
○
○
SET_USB_RWAIT
○
○
×
○
○
×
○
○
GET_VENDOR
FORCE_
DISCON_USB
FORCE_CON_USB
○
○
×
○
○
×
○
○
○
○
○
○
○
○
×
×
×
×
×
×
×
×
○
○
FORCE_DISCON_SD
×
×
×
×
×
×
○
○
FORCE_CON_SD
×
×
×
×
×
×
○
○
SET_LUN
○
○
×
○
○
×
○
○
RESET_LUN
○
○
×
○
○
×
○
○
{ = Enabled × = Disabled
* Analyzing shows the File/Folder information is being obtained after GET_DIRECT command is transmitted.
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Datasheet
BU94601KV BU94603KV BU94604BKV
23.2 Status output
The LSI outputs the operation information, such as internal status, play time information, folder information, file
information ID3Tag information, AACTag information, and WMATag information, using the I2C interface.
The statuses as shown in Table 21. MODE3 status register map are output. There are two methods available:
to read a desired number of bytes continuously from the OFFSET position and to read the data by one command
without specifying the OFFSET position. Figure 23. shows the status output commands.
Table 23 shows the enabled/disabled state of the status commands.
The status register has a ring buffer structure of OFFSET 0x00-0x7F. The OFFSET position is automatically
incremented after reading byte data.
Status register outputs a byte data of OFFSET 0x00-0x7F by "Little Endian" format. (Exception exists when
using READ_ID3_TITLE, READ_ID3_ARTIST, and READ_ID3_ALBUM command. See Table 22. MODE3 Status
Output Commands)
Table 21. MODE3 Status Output
Offset
Status
bit7
(MSB)
bit6
bit5
bit4
bit3
bit2
bit1
bit0
(LSB)
0x00
STATUS1
ERROR
0: No error
1: Error occurs
SEARCH
0: Search stop
1: Searching
0
0
DEC_ERR
0: No error
1: Error occurs
STOP
0: Not stopped
1. Stopping
PAUSE
0: Not paused
1: Pausing
Play
0: Not played
1: Playing
STATUS2
USBINS
0: USB not
connected
1: USB
connection
detected
SDINS
0: SD not
connected
1: SD connection
detected
USBFILE
Playable file
within USB
memory
0: Absent
1: Present
STATUS3
BUSY
Command
Busy
0: Not BUSY
1: BUSY
MCHNG
Tune number
change detection
0: Tune
ended/stopped
1: Playing
0
ID3EXIST
TAG information
0: Not exist
1. Exist
STATUS4
ANAEND
0: Analyzing
1: Analysis
completed
FOLINF
Folder
information
0: Absent
1: Present
FOLFULL
Folder buffer
0: Not FULL
1: FULL
FILEINF
Folder information
0: Absent
1: Present
0x04
STATUS5
12MOUT
12 MHz clock
output
0: OFF
1: ON
WDT_RFLG
0:after RESET
0x05
VOLINF
0
0
0x01
0x02
0x03
0x06
0x07
0x08
PDEVUSB
PDEVSD
SDFILE
MDEVUSB
MDEVSD
PDEVUSB USB PDEVUSB SD
Playable file within
USB memory
SD memory
memory
memory
SD memory
0: Not recognized 0: Not recognized
0: Stopping
0: Stopping
0: Absent
1: Recognized
1: Recognized 1: Playing/ID3Tag 1: Playing/ID3Tag
1: Present
analyzing
analyzing
WMAPLAY
Play file information
0: MP3
1: WMA , 2: AAC
3:Device with 2 configurations or more
0
0
0
0
FBP
Fast backward
playing
0: OFF
1: ON
FFP
Fast forward
playing
0: OFF
1: ON
0
RES_ERR
Resume error
0: No error
1: Error occurs
0
0
0
0
0
DOUT
Audio output
0: LINE output
1: I2S / SPDIF
VOLINF
Sound volume information
[ 4: 0 ]
0
PRECOM
Previous Command information
0: normal
1: miss
PRECOM
DOUT
0
FILEFULL
Folder buffer
0: Not FULL
1: FULL
0
EQINF
Equalizer setting information
0000: OFF
0001: POPS
0010: JAZZ
0011: ROCK
0100: CLASSIC
0101: R&B
1000: BASS BOOST
1001: POPS+BASS
1010: JAZZ+BASS
1011: ROCK+BASS
1100: CLASSIC+BASS
1101: R&B+BASS
1111 BASS BOOST2
EQINF
ID3RSID1
ID3RSID2
ID3Tag Version1 ID3Tag Version2
0: Absent
0: Absent
1: Present
1: Present
Un Support
HUB
device
Detection Flag
0: Not
Detection Flag
Detection
0: Not Detection
1: Detection
1: Detection
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
Vendor code
Detection Flag
0: Apple Not
Detection
1: Apple
Detection
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0
0
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Datasheet
BU94601KV BU94603KV BU94604BKV
0x09
DOUTINF
DOUTINF
I2S format status
0x58: 32fs(Initial value)
0x59: 48fs
0x5B: 64fs
0x0A
PFOLNL
00h
0x0B
PFOLNH
00h
0x0C
PFILENL
00h
0x0D
PFILENH
00h
0x0E
PSEC
Playing time second information
[7:4]x10 second.
Playing time second information
[3:0]x1second.
0x0F
PMIN
Playing time minute information
[7:4]x10 min.
Playing time minute information
[3:0]x1 min.
0x10
TFOLL
TFOLL
Current folder total folder number lower-order byte
[7:0]
0x11
TFOLH
TFOLH
Current folder total folder number upper-order byte
[15:8]
0x12
TFILEL
TFILEL
Current folder total file number lower-order byte [15:0]
[7:0]
0x13
TFILEH
TFILEH
Current folder total file number upper-order byte [15:0]
[15:8]
0x14
RESFOLL
RESFOLL
Remaining analysis folder number lower-order byte
[7:0]
0x15
RESFOLH
RESFOLH
Remaining analysis folder number upper-order byte
[15:8]
0x16
RESFILEL
RESFILEL
Remaining analysis file number lower-order byte
[7:0]
0x17
RESFILEH
RESFILEH
Remaining analysis file number upper-order byte
[15:8]
0x18
SETFOLL
SETFOLL
Folder acquisition setting value lower-order byte
[7:0]
0x19
SETFOLH
SETFOLH
Folder acquisition setting value upper-order byte
[15:8]
0x1A
SETFILEL
SETFILEL
File acquisition setting value lower-order byte
[7:0]
0x1B
SETFILEH
SETFILEH
File acquisition setting value upper-order byte
[15:8]
0x1C
LANGL
LANGL
Language code information lower -order byte [7:0]
0x1D
LANGH
LANGH
Language code information upper -order byte [15:8]
0x20
|
0x7F
COMAREA
COMAREA
Data common area
The content varies depending on the status read command.
* Play file information: The value is 0 when BU94601KV. “3: Device with 2 configurations or more” is supported only by BU94604BKV.
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Datasheet
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Table 22. MODE3 Status Output Commands
Command
Command name
Status output
bytes
Status
1st byte
2nd byte
0x5E
OFFSET
Optional
READ_STATUS
0x00
5
· This command outputs OFFSET
0x00-0x04 of status buffer.
READ_PLAY_INFO
0x01
6
· This command outputs OFFSET
0x0A-0x0F of status buffer.
READ_VOL
0x02
1
· This command outputs OFFSET 0x05 of
status buffer.
READ_EQ
0x03
1
· This command outputs OFFSET 0x06 of
status buffer.
READ_ID3_TITLE
0x04
64
READ_ID3_ARTIST
0x05
64
READ_ID3_ALBUM
0x06
64
READ_FILE_NAME
0x07
64
READ_FOLDER_NAME
0x08
64
READ_RESUME_INFO
0x09
42
0x0A
4
· This command outputs the data of
Tag Title. *1
· This command outputs the data of
Tag Artist. *1
· This command outputs the data of
Tag Album. *1
· This command outputs the data of
playing file name. see 20.4
· This command outputs the data of
folder name includes playing
AAC/WMA/MP3 file. see 20.4
. Acquire RESUME information in this
command while being playbacking or
pausing.
. Set the data acquired in this command as
it is when setting RESUME information
by "SET_RESUME_INFO1-7".
· This command outputs OFFSET
0x10-0x13 of status buffer.
READ_REST_NUM
0x0B
4
· This command outputs OFFSET
0x14-0x17 of status buffer.
READ_SET_NUM
0x0C
4
READ_FOLDER_INFO
0x0D
76
READ_FILE_INFO
0x0E
76
READ_CLAS
0x0F
4
READ_VERSION
0x10
1
· This command outputs OFFSET
0x18-0x1B of status buffer.
· This command outputs the result of folder
analysis by "GET_DIRECT" command.
see 23.3.
· This command outputs the result of file
analysis by "GET_DIRECT" command.
see 23.3.
· This command outputs the data of file
cluster number. Use to check file when
"PLAY_DIRECT".
· This command outputs the data of
Firmware version.
READ_BUFF
READ_NUMBER
0x5F
READ_FILE_SIZE
0x11
4
READ_FILE_DATA
0x12
96
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· This command outputs the specified
OFFSET byte data from status buffer.
· The size of a specified file of the File
Read function is acquired. It outputs
With ittleEndian.
· When the file doesn't exist, "0xFF, 0xFF,
0xFF, and 0xFF" is output.
· The file data of a specified file of
the File Read function is read.
· The 92byte data reading is possible
by one time.
· Four head bytes are file offsets.
It outputs with LittleEndian.
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001
Datasheet
BU94601KV BU94603KV BU94604BKV
·
·
READ_LUN
0x17
1
·
READ_LUN_NUM
0x18
1
READ_SET_LUN
0x19
1
·
·
In case of AUTO detection mode of
LUN, LUN of mounted USB memory can
beread.
If LUN is specified using the "SET_LUN"
command, specified LUN of mounted
USB memory can be read. But if
failed to mount, 0xFF is read.
Attention) When memory connected to
multi-card reader is removed or
re-inserted, LUN read by this
command is NOT correct until mount
of re-inserted media is completed.
Read the total of LUN of the USB
memory which is connected now.
Read LUN specified by the "SET_LUN"
command.
In not setting up, 0xFF is read.
*1:BOM(Byte Order Mark) might enter two head bytes according to ID3 data. Status register outputs byte data by "Big Endian" format when WMA tag
reading.
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Table 23.
After
*1
During play
recognizing
Searching Error
Analyzing of device
device
READ_BUFF
○
○
○
○
○
READ_STATUS
○
○
○
○
○
READ_PLAY_INFO
○
×
○
×
READ_VOL
○
×
○
×
○*2
○
READ_EQ
○
×
○
×
○
READ_ID3_TITLE
○
×
○
×
×
READ_ID3_ ARTIST
○
×
○
×
×
READ_ID3_ALBUM
○
×
○
×
×
READ_FILE_NAME
○
×
○
×
×
READ_FOLDER_NAME
○
×
○
×
×
READ_RESUME_INFO
○
×
○
×
×
READ_NUMBER
○
×
×
×
×
READ_REST_NUM
○
×
×
×
×
READ_SET_NUM
○
×
×
×
×
READ_FOLDER_INFO
○
×
×
×
×
READ_FILE_INFO
○
×
×
×
×
READ_CLAS
○
×
×
×
×
READ_VERSION
○
×
×
×
×
READ_FILE_SIZE
READ_FILE_DATA
After recognizing the USB memory, only the halt
condition is the command effective.
READ_LUN
○
×
○
×
○
READ_LUN_NUM
READ_SET_LUN
○
×
○
×
○
○
×
○
×
○
{ = Enabled × = Disabled
*1 Analyzing shows the File/Folder information is being obtained after GET_DIRECT command is transmitted.
*2”READ_PLAY_INFO” command when an error occurs can be received.
However, status output may not send correct data.
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23.3 Folder information/File information
For analysis performed by “GET_DIRECT” command, read 76 bytes from the status register “COMAREA
(0x20-0x6B)” using status commands “READ_FOLDER_INFO” and “READ_FILE_INFO”. Each of the status
register structures when “READ_FOLDER_INFO” and “READ_FILE_INFO” are sent is shown below.
(1) Folder information
When the folder is specified using “SET_DIRECT”, the LSI allows you to fetch the folder information in the
specified folder from the memory device at “GET_DIRECT” and read folder information using
“READ_FOLDER_INFO”.
Table 24. shows the status register structure.
Table 24. Folder Information Register Structure
Status
OFFSET
0x20-0x25
0x26-0x27
0x28-0x2B
0x2C-0x6B
i. Access data
:
ii. Reserve
:
iii. Cluster number :
iv. Folder name
:
Folder information
Access data [6 bytes]
Reserve [2 bytes]
Cluster number [4 bytes]
Folder name [64 bytes]
Shows the position where the folder information is written in the memory.
All “0s” are output.
Shows the cluster number where the folder information is written in the memory.
Outputs the folder name from the leftmost position.
(2) File information
When the folder is specified using “SET_DIRECT”, the LSI allows you to fetch the file information in the
specified folder from the memory device at “GET_DIRECT” and read file information using
“READ_FILE_INFO”.
Table 25. shows the status register structure.
Table 25. File Information Register Structure
Status
OFFSET
0x20-0x25
0x26
0x27
0x28-0x2B
0x2C-0x6B
i.Access data
ii. Judge file type
:
:
iii. Reserve
:
iv. Cluster number :
v. File name
:
File information
Access data [6 bytes]
Judge file type[1 bytes] *
Reserve [1bytes]
Cluster number [4 bytes]
File name [64 bytes]
Shows the position where the file information is written in the memory.
Output “0” when play MP3 file, output “1” when play WMA file, output “2” when play
AAC file.
All “0s” are output.
Shows the cluster number where the file information is written in the memory.
Outputs the file name from the leftmost position.
* “Reserve [1bytes]” when BU94601KV.
23.4 Language Code Information
This LSI outputs Language Code Information to Status register. (OFFSET=0x1C and 0x1D)
See Chapter 22.5.
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24. Watchdog Timer
This system builds Watchdog timer(WDT) function.
After RESET, WDT function is enabled on MODE1, MODE2 and MODE3. WDT is enabled always on MODE1. On
MODE2 and MODE3, WDT function can disable by command “SET_WDT”(0x5A,0x00). After WDT function is
disabled, this function cannot enable until a reset from external pin.
When WDT function is enabled and system is hang-up, Watchdog Timer function generates RESET.
When you want to watch RESET of WDT from master micro controller, write command “SET_WDT”(0x5A,0x01). After
write command “SET_WDT”(0x5A,0x01), status “WDT_RFLG” is “1”.
“WDT_RFLG” is bit6 of STATUS5(offset;x04). This status is “0” after RESET. Therefore, when this status returned to
“0” from “1”, this system generated a reset.
25. IRPTO (Only BU94604BKV)
The device can be controlled about MODE2 and 3 about the device where two CONFIGURATION or more is
detected at USB device connection Enumeration by the following commands.
25.1 Command operation
As for the command specification that can be used, it is table VII. It shows in 6.1.
Table 26.
Command operation explanation
bmRe
bReq
Command
Command
quest
wValue
wIndex
wLength
0x0000
0x0008
uest
Type
name
1st
2nd
3rd
4th
5th
6th
7th
8th
Explanation
0x80
0x00
0x00
-*1
-
-
0x06
0x0100
-
Acquire the size of the device descriptor.
GET_
0x00
0x80
0x06
0x0100
0x0000
Set value
DESCRIPTOR
0x01
Set value
-
-
-
-
Acquire the descriptor of the number of bytes for a set
value.
0x80
0x06
0x02_
0x0000
0x0008
Set value
0x00
Set value
-
-
-
-
Acquire the size of the configuration descriptor of the
index of a set value.
GET_CONFIG
0x01
0x80
0x06
0x02_
0x0000
Set value 2
Set value 1
0x01
Set value 1 Set value 2
-
-
-
Acquire the configuration descriptor of the block of set
value 2(one block 96 bytes) of the index of set value 1.
0x5C
0x00
SET_CONFIG
0x01
0x02
Set value
-
-
-
0x09
Set value
0x0000
0x0000
-
Set it to the configuration of a set value. *2
0x80
0x00
0x00
0x00
-
0x06
0x0300
0x0000
0x0040
Set value
0x0040
-
Acquire language ID.
0x80
0x06
0x03_
0x00
Set value 1 2_3
Set value 1 Set value 2 Set value 3
-
-
Acquire the size of the string of the index of setting 1 of
GET_STRING
0x02
languages ID of set values 2 and 3.
0x80
0x06
0x03_
Set value
Set value 2
Set value 1 3_4
0x01
Set value 1 Set value 2 Set value 3 Set value 4
-
Acquire the string of the size of index and set value 2 of
set value 1 of languages ID of set values 3 and 4.
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End point descriptor setting
EP/IO : D7(1:IN、0:OUT)、 D3-D0(Endpoint)
Type : 0x00(Control transfer)、
SET_DEVICE
0x03
EP/IO
wMaxPkt
wMaxPkt
Lo byte
Hi byte
Type
0x01(Isochronous transfer)、0x02(Bulk transfer)、0x03
bInterval
-
(Interrupt transfer)
wMaxPkt : Supported size of the maximum packet
bInterval : Polling interval
*Begin polling on interrupt IN forwarding after it sets it.
GET_HID_
wValue
wValue
wIndex
wIndex
wLength
wLength
Lo byte
Hi byte
Lo byte
Hi byte
Lo byte
Hi byte
0x81
0x06
wVlaue
wIndex
wLength
0x04
REPORT
Acquire the HID report descriptor. *2
0x21
wValue
wValue
wIndex
wIndex
wLength
wLength
Lo byte
Hi byte
Lo byte
Hi byte
Lo byte
Hi byte
0x09
wVlaue
wIndex
wLength
0x05
SET_REPORT request command setting for HID class
device.
SET_HID_
0xN
REPORT
0x06
Data setting at SET_REPORT request command for HID
DATA
DATA
DATA
DATA
DATA
(N-1)*5
(N-1)*5+1
(N-1)*5+2
(N-1)*5+3
(N-1)*5+4
(N=0x01 to
class device.
0x0D)
Transmission of SET_REPORT request command for
HID class device.
0x06
0x0E
0x00
0x00
0x00
0x00
0x00
The SET_HID_REPORT command is completed by
transmitting this command.
0x00
0x00
-
-
-
-
*2
Acquire the interrupt forwarding receive data.
0x5C
Acquire the reception byte of HID REPORT.
GET_INT
0x07
The reception byte acquires the size of the report
0x01
0x00
-
-
-
-
acquired in HID_Report_Descriptor. An effective actual
data size becomes below this size.
Transmit this command when you connect the connected
SET_MASST
0x08
0x00
0x00
-
-
-
-
device as a mass storage class device.
SET_ISO_
Begin the isochronous IN forwarding data reproduction.
0x00
0x00
-
-
-
-
0x01
0x00
-
-
-
-
START
0x09
SET_ISO_
Stop the isochronous IN forwarding data reproduction.
STOP
Change the sample rate.
SET_FS
0x0A
Set value
0x00
-
-
-
-
GET_REPORT
0x0B
Set value
0x00
-
-
-
-
wValue
wValue
wIndex
wIndex
Lo byte
Hi byte
Lo byte
Hi byte
0x00:32kHz、0x01:44.1kHz、0x02:48kHz
SET_
-
0x0C
INTERFACE
0x00
Acquire the report data of the block of a set value.
0x01
0x0B
wValue
wIndex
0x0000
-
Switch wValue to the interface of wIndex.
wValue
wValue
Lo byte
Hi byte
wLength
wLength
Set
Set
value 2
value 1
wVlaue
wIndex
wLength
-
Set value 1 Set value 2
0xFE
wIndex
wIndex
SET_
VENDOR
USB device request.
-
0x01
Lo byte
Hi byte
Lo byte
HI byte
DATA
DATA
DATA
DATA
DATA
(N-1)*5
(N-1)*5+1
(N-1)*5+2
(N-1)*5+3
(N-1)*5+4
0x00
0x00
0x00
0x00
0x00
0xN
Data setting for USB device request.
(N=0x01
0xFF
to 0x0D)
0x0E
Data transmission for USB device request. *2
*1 : The transmission of "-" is unnecessary.
*2 : After confirming BUSY status L output, wait of 3ms is necessary when the command transmission is done.
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●Notes for use
(1)Power on Reset
Please keep the terminal RESETX at the Low level when the power supply starts. Please make the terminal RESETX
High level after 5us after 3.3V system power supply and the oscillation of the system clock is steady. Moreover, please
make the terminal RESETX Low level during 5us or more when resetting it while operating.
(2) About compatibility in USB memory device and SD memory card
According to the file structure and communication speed of an USB memory, SD memory card, this LSI might not play
back correctly.
(3) About turning on the power supply
Current rush might flow momentarily by the order of turning on the power supply and the delay in IC with two or more
power supplies, and note the capacity of the power supply coupling, the power supply, and width and drawing the GND
pattern wiring.
(4) About absolute maximum rating
When the absolute maximum rating such as the applied voltage and the ranges of the operating temperature
is exceeded, LSI might be destroyed. Please apply neither voltage nor the temperature that exceeds the
absolute maximum rating. Please execute physical measures for safety such as fuse when it is thought to
exceed the absolute maximum rating, and examine it so that the condition to exceed the absolute maximum
rating is not applied to LSI.
(5) About GND Voltage
In any state of operation must be the lowest voltage about the voltage of the terminal GND. Please actually confirm the
voltage of each terminal is not a voltage that is lower than the terminal GND including excessive phenomenon.
(6) About design of overheating malfunction preventive circuit
Please design overheating malfunction preventive circuit with an enough margin in consideration of a permissible loss
in the state of using actually.
(7) About the short between terminals and the mounting by mistake
Please note the direction and the gap of position of LSI enough about LSI when you mount on the substrate.
LSI might be destroyed when mounting by mistake and energizing. Moreover, LSI might be destroyed when
short-circuited
by entering of the foreign substances between the terminal and GND, between terminals, between the terminal and the
power supply of LSI.
(8) About operation in strong electromagnetic field
Use in strong electromagnetic field has the possibility of malfunctioning and evaluate it enough, please.
(9) Playing time of MP3 file
The playing time when it can be acquired at the time of playing the MP3 file, may shift when fast forward playing,
rewinding playing, and VBR playing.
(10) About WMA
Windows Media Audio is the music compression technology which Microsoft Corp. developed.
Windows Media is the registered trademark of U.S. Microsoft Corporation in the U.S., and other countries.
(11) About I2C format I/F
Although this LSI has adopted the I2C format, the level shifter circuit is not built in.
For this reason, level shifter is needed for connection with the device besides the range of operating power supply
voltage of this LSI.
(12) About " Made for iPod / iPhone / iPad License "
For using of BU94604BKV, It is necessary to become a licensee of Apple Inc. regarding "Made for iPod/iPhone/iPad
License"
Status of this document
The Japanese version of this document is the formal specification. A customer may use this translation version only for a
reference to help reading the formal version. If there are any differences in translation version of this document, formal
version takes priority.
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●Information about ordering part number
B
U
9
4
6
0
x
x
Part Number
BU94601KV (MP3 support)
BU94603KV (AAC/WMA/MP3 support)
BU94604BKV (AAC/WMA/MP3 + iPod support)
K
V
-
Package
KV: VQFP64
x
x
x
x
Packaging and forming specification
ZAE2: Reel-formed emboss taping
None: Tray, Tube
●External dimension
BU94601KV/BU94603KV/BU94604BKV (VQFP64)
12.0±0.2
10.0±0.1
33
48
32
49
1.25
1.25
Lot No.
64
0.5±0.15
1.0±0.2
12.0±0.2
10.0±0.1
BU9460xxxx
17
1
16
1 PIN mark
1.6MAX
0.145
+0.05
-0.03
+6゜
1.4±0.05
0.1±0.05
4゜ -4゜
0.5±0.1
0.08
0.2
+0.05
-0.04
S
0.08
M
( UNIT : mm )
●Mark name image
VQFP64 (TOP VIEW)
Part Number Marking
LOT Number
1PIN MARK
Part number
Part Number Marking
Ordering part number
BU94601KV
BU94601KV
BU94601KV-ZAE2
BU94603KV
BU94603KV
BU94603KV-ZAE2
BU94604BKV
BU94604BKV
BU94604BKV-ZAE2
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●Revision history
Date
Revision
12.Jul.2012
001
Changes
New Release
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Notice
Precaution on using ROHM Products
1.
Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you
(Note 1)
, transport
intend to use our Products in devices requiring extremely high reliability (such as medical equipment
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific
Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN
USA
EU
CHINA
CLASSⅢ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅣ
CLASSⅢ
2.
ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which
a failure or malfunction of our Products may cause. The following are examples of safety measures:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
3.
Our Products are designed and manufactured for use under standard conditions and not under any special or
extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way
responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any
special or extraordinary environments or conditions. If you intend to use our Products under any special or
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of
product performance, reliability, etc, prior to use, must be necessary:
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,
H2S, NH3, SO2, and NO2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
4.
The Products are not subject to radiation-proof design.
5.
Please verify and confirm characteristics of the final or mounted products in using the Products.
6.
In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7.
De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
8.
Confirm that operation temperature is within the specified range described in the product specification.
9.
ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1.
When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2.
In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the
ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Notice - GE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.002
Datasheet
Precautions Regarding Application Examples and External Circuits
1.
If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2.
You agree that application notes, reference designs, and associated data and information contained in this document
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses
incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
Precaution for Storage / Transportation
1.
Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2.
Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3.
Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
4.
Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
Precaution for Product Label
QR code printed on ROHM Products label is for ROHM’s internal use only.
Precaution for Disposition
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,
please consult with ROHM representative in case of export.
Precaution Regarding Intellectual Property Rights
1.
All information and data including but not limited to application example contained in this document is for reference
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable
for infringement of any intellectual property rights or other damages arising from use of such information or data.:
2.
No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the information contained in this document.
Other Precaution
1.
This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
2.
The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
3.
In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
4.
The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
Notice - GE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.002
Datasheet
General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s
representative.
3.
The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or
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