Holtek HT83074 Q-voicetm Datasheet

HT83XXX
Q-VoiceTM
Technical Document
· Tools Information
· FAQs
· Application Note
Features
· Operating voltage: 2.4V~5.2V
· Watchdog Timer
· Up to 1ms (0.5ms) instruction cycle with 4MHz (8MHz)
· 4-level subroutine nesting
· HALT function and wake-up feature reduce power
system clock
· System clock: 4MHz~8MHz (2.4V)
consumption
· PWM circuit direct drive speaker or output by
· Crystal or RC oscillator for system clock
transistor
· 12 I/O pins
· 20-pin SSOP (150mil/209mil) package
· 2K´15 program ROM
28-pin SOP (300mil) package
· 80´8 RAM
· Two 8-bit programmable timer counter with 8-stage
prescaler and one time base counter
Applications
· Intelligent educational leisure products
· Sound effect generators
· Alert and warning systems
General Description
The HT83XXX is excellent for versatile voice and sound
effect product applications. The efficient MCU instructions allow users to program the powerful custom applications. The system frequency of HT83XXX can be up
to 8MHz under 2.4V and include a HALT function to reduce power consumption.
The HT83XXX is 8-bit high performance microcontroller
with voice synthesizer and tone generator. The
HT83XXX is designed for applications on multiple I/Os
with sound effects, such as voice and melody. It can provide various sampling rates and beats, tone levels, tempos for speech synthesizer and melody generator.
Selection Table
Body
HT83004
HT83007
HT83010
HT83020
HT83038
HT83050
HT83074
Voice ROM Size
64K-bit
128K-bit
192K-bit
384K-bit
768K-bit
1024K-bit
1536K-bit
3 sec
6 sec
9 sec
18 sec
36 sec
48 sec
72 sec
Voice Length
Rev. 1.60
1
November 19, 2008
HT83XXX
Block Diagram
S T A C K 0
In te rru p t
C ir c u it
S T A C K 1
S T A C K 2
P ro g ra m
C o u n te r
P ro g ra m
R O M
T M R 0
8 - s ta g e P r e s c a le r
T M R 0 C
S T A C K 3
8 - b it
IN T C
T M R 1
In s tr u c tio n
R e g is te r
M P 0
M
U
X
8 - s ta g e P r e s c a le r
T M R 1 C
D a ta
M e m o ry
M U X
P A C
O S
R E
V D
V S
P O R T A
P A 0 ~ P A 7
S T A T U S
A L U
O S C 2
P B C
S h ifte r
P O R T B
P B 0 ~ P B 3
P B
C 1
S
D
S
S Y S C L K /4
S Y S C L K /1 0 2 4
P A
T im in g
G e n e r a tio n
S Y S C L K
8 - b it
T im e B a s e
In s tr u c tio n
D e c o d e r
S Y S C L K
W D T S
A C C
M
W D T P r e s c a le r
¸ 2 5 6
U
W D T R C
O S C
X
S Y S C L K /4
S Y S C L K
P W M
P W M 1
P W M 2
Pin Assignment
1
2 8
N C
N C
2
2 7
N C
N C
3
2 6
N C
O S C 2
1
2 0
R E S
P A 0
4
2 5
P W M 2
O S C 1
2
1 9
P A 7
P A 1
5
2 4
P W M 1
V S S
3
1 8
P A 6
P A 2
6
2 3
V D D P
V S S P
4
1 7
P A 5
P A 3
7
2 2
V D D
V D D
5
1 6
P A 4
P A 4
8
2 1
V S S P
P A 5
9
2 0
V S S
V D D P
6
1 5
P A 3
P W M 1
7
1 4
P A 2
P W M 2
8
1 3
N C
9
N C
1 0
P A 6
1 0
1 9
O S C 1
P A 1
P A 7
1 1
1 8
O S C 2
1 2
P B 0
1 7
R E S
P A 0
1 2
P B 1
1 6
N C
1 1
1 3
N C
P B 2
1 4
1 5
P B 3
H T 8 3 0 0 4 /H T 8 3 0 0 7 /H T 8 3 0 1 0 /H T 8 3 0 2 0
H T 8 3 0 3 8 /H T 8 3 0 5 0 /H T 8 3 0 7 4
2 8 S O P -A
H T 8 3 0 0 4 /H T 8 3 0 0 7 /H T 8 3 0 1 0 /H T 8 3 0 2 0
H T 8 3 0 3 8 /H T 8 3 0 5 0 /H T 8 3 0 7 4
2 0 S S O P -A
Rev. 1.60
N C
2
November 19, 2008
HT83XXX
Pad Assignment
HT83004/HT83007/HT83010
P A 0
1
P A 1
2
P A 2
3
P A 3
4
(0 ,0 )
2 1
P W M 2
2 0
P W M 1
5
V D D P
1 8
V D D
P A 4
1 9
1 7
V S S P
8
1 6
V S S
1 5
O S C 1
1 4
O S C 2
9
1 0
P B 1
P B 0
1 1
1 2
1 3
R E S
7
P A 7
P B 3
6
P B 2
P A 5
P A 6
Chip size: 2280´1475 (mm)2
* The IC substrate should be connected to VSS in the PCB layout artwork.
HT83020/HT83038
P A 0
P A 1
1
P A 2
P A 3
3
P A 4
P A 5
5
P A 6
P A 7
7
2
4
6
8
9
2 1
P W M 2
2 0
P W M 1
1 9
V D D P
1 8
V D D
(0 ,0 )
1 0 1 1 1 2 1 3
1 7
1 6
V S S P
V S S
1 5
1 4
O S C 1
O S C 2
0
1
2
3
R E S
P B
P B
P B
P B
Chip size: 2180´1720 (mm)2
* The IC substrate should be connected to VSS in the PCB layout artwork.
Rev. 1.60
3
November 19, 2008
HT83XXX
HT83050/HT83074
1
P A 2
P A 3
3
P A 4
P A 5
5
P A 6
P A 7
7
(0 ,0 )
P A 0
P A 1
2
4
6
2 1
P W M 2
2 0
P W M 1
1 9
1 8
V D D P
V D D
1 7
V S S P
V S S
1 6
8
O S C 1
O S C 2
1 5
9
1 4
1 0 1 1 1 2 1 3
R E S
P B 3
P B 2
P B 1
P B 0
Chip size: 2180´2075 (mm)2
* The IC substrate should be connected to VSS in the PCB layout artwork.
Pad Coordinates
HT83004/HT83007/HT83010
Pad No.
X
Y
Pad No.
X
Y
1
2
3
4
5
6
7
8
9
10
11
-940.400
-940.400
-940.400
-940.400
-940.400
-940.400
-940.400
-940.400
-947.200
-852.200
-749.200
307.150
212.150
109.150
14.150
-88.850
-183.850
-286.850
-381.850
-587.900
-587.900
-587.900
12
13
14
15
16
17
18
19
20
21
-654.200
-551.200
940.400
940.400
940.600
940.600
896.250
904.900
904.900
904.900
-587.900
-587.900
-571.200
-476.200
-368.500
-273.000
-165.350
-63.250
56.300
266.800
HT83020/HT83038
Pad No.
X
Y
Pad No.
X
Y
1
2
3
4
5
6
7
8
9
10
11
-940.400
-940.400
-940.400
-940.400
-940.400
-940.400
-940.400
-940.400
-947.200
-852.200
-749.200
184.650
89.650
-13.350
-108.350
-211.350
-306.350
-409.350
-504.350
-710.400
-710.400
-710.400
12
13
14
15
16
17
18
19
20
21
-654.200
-551.200
940.400
940.400
940.600
940.600
896.250
904.900
904.900
904.900
-710.400
-710.400
-693.700
-598.700
-491.000
-395.500
-285.750
-185.750
-66.200
144.300
Rev. 1.60
4
November 19, 2008
HT83XXX
HT83050/HT83074
Pad No.
X
Y
Pad No.
1
2
X
-940.400
7.150
12
-654.200
-887.900
-940.400
-87.850
13
-887.900
-871.200
-776.200
3
-940.400
-190.850
14
-551.200
940.400
4
-940.400
-285.850
15
940.400
Y
5
-940.400
-388.850
16
940.600
-668.500
6
-940.400
-483.850
17
940.600
-573.000
7
-940.400
-586.850
18
896.250
-463.250
8
-940.400
-681.850
19
904.900
-363.250
9
-947.200
-887.900
20
904.900
-243.700
10
-852.200
-887.900
21
904.900
-33.200
11
-749.200
-887.900
Pad Description
Pad Name
I/O
Mask Option
Description
PA0~PA7
I/O
Wake-up,
Pull-high
or None
Bidirectional 8-bit I/O port. Each bit can be configured as a wake-up input by
mask option. Software instructions determine the CMOS output or Schmitt trigger input with or without pull-high resistor (mask option).
PB0~PB3
I/O
Pull-high
or None
Bidirectional 4-bit I/O port. Software instructions determine the CMOS output or
Schmitt trigger input (pull-high resistor depending on mask option).
VSS
¾
¾
Negative power supply, ground
VSSP
¾
¾
PWM negative power supply, ground
VDD
¾
¾
Positive power supply
VDDP
¾
¾
PWM positive power supply, ground
I
¾
Schmitt trigger reset input, active low
RES
OSC1,
OSC2
¾
PWM1,
PWM2
O
OSC1 and OSC2 are connected to an RC network or crystal (by mask option)
for the internal system clock. In the case of RC operation, OSC2 is the output
RC or Crystal
terminal for 1/4 system clock. The system clock may came form the crystal, the
two pins cannot be floating.
¾
PWM output for driving a external transistor or speaker
Absolute Maximum Ratings
Supply Voltage ..........................VSS+2.4V to VSS+5.5V
Storage Temperature ...........................-50°C to 125°C
Input Voltage .............................VSS-0.3V to VDD+0.3V
Operating Temperature ..........................-40°C to 85°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed
in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Rev. 1.60
5
November 19, 2008
HT83XXX
D.C. Characteristics
Symbol
Parameter
VDD
Operating Voltage
ISTB1
Standby Current (Watchdog Off)
ISTB2
Test Conditions
Min.
Typ.
Max.
Unit
2.4
¾
5.2
V
¾
¾
1
mA
5V
¾
¾
2
mA
3V
¾
¾
7
mA
¾
¾
10
mA
¾
¾
3
mA
¾
¾
7
mA
7
¾
¾
mA
15
¾
¾
mA
-3.5
¾
¾
mA
-8
¾
¾
mA
50
¾
¾
mA
80
¾
¾
mA
-14.5
¾
¾
mA
-26
¾
¾
mA
¾
1
¾
V
¾
2
¾
V
¾
2
¾
V
¾
3.2
¾
V
¾
1.5
¾
V
¾
2.5
¾
V
¾
2.1
¾
V
¾
3.5
¾
V
RTYPICAL=275kW
¾
4.0
¾
MHz
RTYPICAL=144kW
¾
8.0
¾
MHz
20
60
100
kW
10
30
50
kW
Conditions
VDD
¾
fSYS=4MHz/8MHz
3V
No load, system HALT
Standby Current (Watchdog On)
No load, system HALT
5V
IDD
3V
Operating Current
No load, fSYS=4MHz
5V
IOL1
3V
I/O Port Sink Current
VOL=0.1VDD
5V
IOH1
3V
I/O Port Source Current
VOH=0.9VDD
5V
IOL2
3V
PWM1/PWM2 Sink Current
VOL=0.1VDD
5V
IOH2
3V
PWM1/PWM2 Source Current
VOH=0.9VDD
5V
VIL1
3V
¾
Input Low Voltage for I/O Ports
5V
VIH1
3V
¾
Input High Voltage for I/O Ports
5V
VIL2
3V
¾
Reset Low Voltage (RES)
5V
VIH2
3V
¾
Reset High Voltage (RES)
5V
fSYS
RPH
System Frequency
3V
3V
¾
Pull-high Resistance
5V
Rev. 1.60
6
November 19, 2008
HT83XXX
A.C. Characteristics
Symbol
Test Conditions
Parameter
Conditions
VDD
Min.
Typ.
Max.
Unit
fSYS1
System Clock (RC OSC)
¾ 2.4V~5.2V
4
¾
8
MHz
fSYS2
System Clock (Crystal OSC)
¾ 2.4V~5.2V
4
¾
8
MHz
fTIMER
Timer Input Frequency
¾ 2.4V~5.2V
0
¾
8
MHz
50
100
200
ms
37
74
148
ms
12
23
46
ms
3V
tWDTOSC Watchdog Oscillator Period
¾
5V
3V
tWDT1
Watchdog Time-out Period
(WDT OSC)
5V
8
17
33
ms
tWDT2
Watchdog Time-out Period
(System Clock)
¾ Without WDT prescaler
¾
1024
¾
tSYS
tRES
External Reset Low Pulse Width ¾
1
¾
¾
ms
tSST
System Start-up Timer Period
¾ Power-up or Wake-up from HALT
¾
1024
¾
tSYS
tINT
Interrupt Pulse Width
¾
¾
1
¾
¾
ms
tDRT
Data ROM Access Timer
¾
¾
5
¾
¾
ms
tDRR
Data ROM enable Read
¾ Read after data ROM enable
30
¾
¾
ms
Without WDT prescaler
¾
Characteristics Curves
R vs. F Characteristics Curve
H T 8 3 X X X
R
v s . F C h a rt
1 0
8
3 V
4 .5 V
F re q u e n c y (M H z )
6
4
2
0
1 4 4
R
1 8 8
Rev. 1.60
2 7 5
5 6 0
(k W )
7
November 19, 2008
HT83XXX
V vs. F Characteristics Curve
H T 8 3 X X X
V v s . F C h a r t (F o r 3 .0 V )
1 0
8
F re q u e n c y (4 M H z )
8 M H z /1 4 4 k W
6
6 M H z /1 8 8 k W
4
4 M H z /2 7 5 k W
2
2 .5
2 .7
3 .0
3 .5
V
H T 8 3 X X X
4 .0
4 .5
5 .2
5 .5
(V )
D D
V v s . F C h a r t (F o r 4 .5 V )
1 0
8 M H z /1 3 9 k W
F re q u e n c y (M H z )
8
6 M H z /1 8 4 k W
6
4 M H z /2 7 4 k W
4
2
2 .5
2 .7
3 .0
3 .5
V
Rev. 1.60
4 .0
4 .5
5 .2
5 .5
(V )
D D
8
November 19, 2008
HT83XXX
Functional Description
incremented by one. The program counter then points
to the memory word containing the next instruction
code.
Execution Flow
The system clock for the HT83XXX is derived from either a crystal or RC oscillator. It is internally divided into
four non-overlapping clocks. One instruction cycle consists of four system clock cycles.
When executing a jump instruction, conditional skip execution, loading PCL register, subroutine call, initial reset, internal interrupt or return from subroutine, the PC
manipulates the program transfer by loading the address corresponding to each instruction.
Instruction fetching and execution are pipelined in such
a way that a fetch takes one instruction cycle while decoding and execution takes the next instruction cycle.
However, the pipelining scheme causes each instruction to effectively execute within one cycle. If an instruction changes the Program Counter, two cycles are
required to complete the instruction.
The conditional skip is activated by instruction. Once the
condition is met, the next instruction, fetched during the
current instruction execution, is discarded and a dummy
cycle takes its place while the correct instruction is obtained.
Program Counter - PC
The 11-bit program counter (PC) controls the sequence
in which the instructions stored in program ROM are executed.
The lower byte of the program counter (PCL) is a
read/write register (06H). Moving data into the PCL performs a short jump. The destination must be within 256
locations.
After accessing a program memory word to fetch an instruction code, the contents of the program counter are
When a control transfer takes place, an additional
dummy cycle is required.
S y s te m
C lo c k
T 1
T 2
T 3
T 4
T 1
P C
P C
T 2
T 3
T 4
T 1
T 2
P C + 1
F e tc h IN S T (P C )
E x e c u te IN S T (P C -1 )
T 3
T 4
P C + 2
F e tc h IN S T (P C + 1 )
E x e c u te IN S T (P C )
F e tc h IN S T (P C + 2 )
E x e c u te IN S T (P C + 1 )
Execution Flow
Mode
Program Counter
*10
*9
*8
*7
*6
*5
*4
*3
*2
*1
*0
Initial Reset
0
0
0
0
0
0
0
0
0
0
0
Time Base Overflow
0
0
0
0
0
0
0
0
1
0
0
Timer Counter 0 Overflow
0
0
0
0
0
0
0
1
0
0
0
Timer Counter 1 Overflow
0
0
0
0
0
0
0
1
1
0
0
@3
@2
@1
@0
Skip
Program Counter+2
Loading PCL
*10
*9
*8
@7
@6
@5
@4
Jump, Call Branch
#10
#9
#8
#7
#6
#5
#4
#3
#2
#1
#0
Return from Subroutine
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
S0
Program Counter
Note: *10~*0: Program counter bits
S10~S0: Stack register bits
#10~#0: Instruction code bits
Rev. 1.60
@7~@0: PCL bits
9
November 19, 2008
HT83XXX
Program Memory - ROM
Table Location
The program memory stores the program instructions
that are to be executed. It also includes data, table and
interrupt entries, addressed by the program counter
along with the table pointer. The program memory size
for HT83XXX is 2048´15 bits. Certain locations in the
program memory are reserved for special usage:
Any location in the ROM space can be used as look up
tables. The instructions ²TABRDC [m]² (used for any
bank) and ²TABRDL [m]² (only used for last page of program ROM) transfer the contents of the lower-order byte
to the specified data memory [m], and the higher-order
byte to TBLH (08H). Only the destination of the
lower-order byte in the table is well-defined. The
higher-order bytes of the table word are transferred to
the TBLH. The table higher-order byte register (TBLH)
is read only.
· Location 000H
This area is reserved for program initialization. The
program always begins execution at location 000H
each time the system is reset.
The table pointer (TBLP) is a read/write register, which
indicates the table location.
· Location 004H
This area is reserved for the time base interrupt service program. If the ETBI (intc.1) is activated, and the
interrupt is enabled and the stack is not full, the program will jump to location 004H and begins execution.
Stack Register - Stack
The stack register is a special part of the memory used
to save the contents of the Program Counter. This stack
is organized into four levels. It is neither part of the data
nor part of the program space, and cannot be read or
written to. Its activated level is indexed by a stack
pointer (SP) and cannot be read or written to. At a subroutine call or interrupt acknowledgment, the contents of
the program counter are pushed onto the stack.
· Location 008H
This area is reserved for the 8-bit Timer Counter 0 interrupt service program. If a timer interrupt results
from a Timer Counter 0 overflow, and if the interrupt is
enabled and the stack is not full, the program will jump
to location 008H and begins execution.
· Location 00CH
The program counter is restored to its previous value
from the stack at the end of subroutine or interrupt routine, which is signaled by return instruction (RET or
RETI). After a chip resets, SP will point to the top of the
stack.
This area is reserved for the 8-bit Timer Counter 1 interrupt service program. If a timer interrupt results
from a Timer Counter 1 overflow, and if the interrupt is
enabled and the stack is not full, the program will jump
to location 00CH and begins execution.
0 0 0 0 H
The interrupt request flag will be recorded but the acknowledgment will be inhibited when the stack is full and
a non-masked interrupt takes place. After the stack
pointer is decremented (by RET or RETI), the interrupt
request will be serviced. This feature prevents stack
overflow and allows programmers to use the structure
more easily. In a similar case, if the stack is full and a
²CALL² is subsequently executed, stack overflow occurs and the first entry is lost.
In itia l A d d r e s s
0 0 0 4 H
T im e B a s e In te r r u p t S u b r o u tin e
0 0 0 8 H
T im e r 0 In te r r u p t S u b r o u tin e
0 0 0 C H
P ro g ra m
R O M
T im e r 1 In te r r u p t S u b r o u tin e
0 0 1 5 H
0 7 F F H
Program Memory
Instruction
Table Location
*10
*9
*8
*7
*6
*5
*4
*3
*2
*1
*0
TABRDC [m]
P10
P9
P8
@7
@6
@5
@4
@3
@2
@1
@0
TABRDL [m]
1
1
1
@7
@6
@5
@4
@3
@2
@1
@0
Table Location
Note: *10~*0: Current program ROM table
@7~@0: Write @7~@0 to TBLP pointer register
P10~P8: Bits of current program counter
Rev. 1.60
10
November 19, 2008
HT83XXX
Data Memory - RAM
On entering the interrupt sequence or executing the
subroutine call, the status register will not be automatically pushed onto the stack. If the contents of the status
is important, and if the subroutine is likely to corrupt the
status register, the programmer should take precautions
and save it properly.
The data memory is designed with 80´8 bits. The data
memory is further divided into two functional groups,
namely, special function registers (00H~2AH) and general
purpose user data memory (30H~7FH). Although most of
them can be read or be written to, some are read only.
The general purpose data memory, addressed from
30H~7FH, is used for data and control information under instruction commands.
0 0 H
IA R 0
0 1 H
M P 0
0 2 H
The areas in the RAM can directly handle the arithmetic,
logic, increment, decrement and rotate operations. Except some dedicated bits, each bit in the RAM can be
set and reset by ²SET [m].i² and ²CLR [m].i². They are
also indirectly accessible through the Memory Pointer
register 0 (MP0:01H).
0 3 H
0 4 H
0 5 H
Indirect Addressing Register
Location 00H is indirect addressing registers that are not
physically implemented. Any read/write operation of
[00H] accesses the RAM pointed to by MP0 (01H) respectively. Reading location 00H indirectly returns the result 00H. While, writing it indirectly leads to no operation.
A C C
0 6 H
P C L
0 7 H
T B L P
0 8 H
T B L H
0 9 H
W D T S
0 A H
S T A T U S
0 B H
IN T C
0 C H
0 D H
0 E H
T M R 0
T M R 0 C
0 F H
1 0 H
T M R 1
Accumulator - ACC (05H)
1 1 H
T M R 1 C
The accumulator (ACC) is related to the ALU operations. It is also mapped to location 05H of the RAM and
is capable of operating with immediate data. The data
movement between two data memory locations must
pass through the ACC.
1 2 H
P A
1 3 H
P A C
1 4 H
P B
1 5 H
P B C
1 6 H
1 7 H
1 8 H
L A T C H 0 H
1 9 H
L A T C H 0 M
This circuit performs 8-bit arithmetic and logic operations and provides the following functions:
1 A H
L A T C H 0 L
· Arithmetic operations (ADD, ADC, SUB, SBC, DAA)
1 C H
Arithmetic and Logic Unit - ALU
1 B H
1 D H
· Logic operations (AND, OR, XOR, CPL)
1 E H
· Rotation (RL, RR, RLC, RRC)
1 F H
2 0 H
· Increment and Decrement (INC, DEC)
· Branch decision (SZ, SNZ, SIZ, SDZ etc)
2 1 H
2 2 H
Status Register - STATUS (0AH)
2 3 H
This 8-bit STATUS register (0AH) consists of a zero flag
(Z), carry flag (C), auxiliary carry flag (AC), overflow flag
(OV), power down flag (PDF), watchdog time-out flag
(TO). It also records the status information and controls
the operation sequence.
2 4 H
2 5 H
Except the TO and PDF flags, bits in the status register
can be altered by instructions similar to other registers.
Data written into the status register does not alter the TO
or PDF flags. Operations related to the status register,
however, may yield different results from those intended. The TO and PDF flags can only be changed by
a Watchdog Timer overflow, chip power-up, or clearing
the Watchdog Timer and executing the ²HALT² instruction. The Z, OV, AC, and C flags reflect the status of the
latest operations.
Rev. 1.60
S p e c ia l P u r p o s e
D a ta M e m o ry
2 6 H
P W M C R
2 7 H
2 8 H
P W M L
P W M H
2 9 H
V o lu m e C o n tr o l R e g is te r ( V O L )
2 A H
L A T C H D
2 B H
: U n u s e d ,
re a d a s "0 "
2 F H
3 0 H
G e n e ra l P u rp o s e D a ta M e m o ry
7 F H
RAM Mapping
11
November 19, 2008
HT83XXX
Address
RAM Mapping
Read/Write
Description
00H
IAR0
R/W
Indirect Addressing Register 0
01H
MP0
R/W
Memory Pointer 0
05H
ACC
R/W
Accumulator
06H
PCL
R/W
Program counter lower-order byte address
07H
TBLP
R/W
Table pointer lower-order byte register
08H
TBLH
R
Table higher-order byte content register
09H
WDTS
R/W
Watchdog Timer option setting register
0AH
STATUS
R/W
Status register
0BH
INTC
R/W
Interrupt control register 0
0DH
TMR0
R/W
Timer Counter 0 register
0EH
TMR0C
R/W
Timer Counter 0 control register
10H
TMR1
R/W
Timer Counter 1 register
11H
TMR1C
R/W
Timer Counter 1 control register
12H
PA
R/W
Port A I/O data register
13H
PAC
R/W
Port A I/O control register
14H
PB
R/W
Port B I/O data register
15H
PBC
R/W
Port B I/O control register
18H
LATCH0H
R/W
Voice ROM address latch 0 [A17, A16]
19H
LATCH0M
R/W
Voice ROM address latch 0 [A15~A8]
1AH
LATCH0L
R/W
Voice ROM address latch 0 [A7~A0]
26H
PWMCR
R/W
PWM control register
27H
PWML
28H
PWMH
29H
VOL
2AH
LATCHD
R/W, higher-nibble
PWM output data P3~P0 to PWML7~PWML4
available only
R/W
PWM output data P11~P4 to PWMH7~PWMH0
R/W, higher-nibble
Volume control register and volume controlled by VOL8~VOL4
available only
R
Voice ROM data register
2BH~2FH Unused
30H~7FH User data RAM
Note:
R/W
User data RAM
R: Read only
W: Write only
R/W: Read/Write
low interrupt nesting. If the stack is full, the interrupt request will not be acknowledged, even if the related
interrupt is enabled, until the Stack Pointer is decremented. If immediate service is desired, the stack must
be prevented from becoming full.
Interrupts
The HT83XXX provides two 8-bit programmable timer
interrupts, and a time base interrupt. The Interrupt Control registers (INTC:0BH) contain the interrupt control
bits to set to enable/disable and the interrupt request
flags.
As an interrupt is serviced, a control transfer occurs by
pushing the program counter onto the stack and then
branching to subroutines at the specified location(s) in
the program memory. Only the program counter is
pushed onto the stack. The programmer must save the
contents of the register or status register (STATUS) in
advance if they are altered by an interrupt service program which corrupts the desired control sequence.
Once an interrupt subroutine is serviced, all other interrupts will be blocked (by clearing the EMI bit). This
scheme may prevent any further interrupt nesting. Other
interrupt requests may happen during this interval but
only the interrupt request flag is recorded. If a certain interrupt needs servicing within the service routine, the
EMI bit and the corresponding INTC bit may be set to alRev. 1.60
12
November 19, 2008
HT83XXX
Bit No.
Label
Function
0
C
C is set if an operation results in a carry during an addition operation or if a borrow does not
take place during a subtraction operation; otherwise C is cleared. C is also affected by a rotate through carry instruction.
1
AC
AC is set if an operation results in a carry out of the low nibbles in addition or no borrow from
the high nibble into the low nibble in subtraction; otherwise AC is cleared.
2
Z
Z is set if the result of an arithmetic or logical operation is zero; otherwise Z is cleared.
3
OV
OV is set if an operation results in a carry into the highest-order bit but not a carry out of the
highest-order bit, or vice versa; otherwise OV is cleared.
4
PDF
PDF is cleared by system power-up or executing the ²CLR WDT² instruction.
PDF is set by executing the ²HALT² instruction.
5
TO
TO is cleared by system power-up or executing the ²CLR WDT² or ²HALT² instruction.
TO is set by a WDT time-out.
6~7
¾
Unused bit, read as ²0²
Status (0AH) Register
the time base interrupt request flag (TBF) which enables
time base control bit (ETBI) from the interrupt control register (INTC:0BH) EMI, ETBI, ET0I, ET1I are used to control the enabling/disabling of interrupts. These bits
prevent the requested interrupt begin serviced. Once the
interrupt request flags (T0F, T1F, TBF) are set, they will
remain in the INTC register until the interrupts are serviced or cleared by a software instruction.
The Internal Timer Counter 0 Interrupt is initialized by
setting the Timer Counter 0 interrupt request flag (T0F:bit
5 of INTC), caused by a Timer Counter 0 overflow. When
the interrupt is enabled, and the stack is not full and the
T0F bit is set, a subroutine call to location 08H will occur.
The related interrupt request flag (T0F) will be reset and
the EMI bit cleared to disable further interrupts.
The Internal Timer Counter 1 Interrupt is initialized by
setting the Timer Counter 1 interrupt request flag (T1F:bit
6 of INTC), caused by a Timer Counter 1 overflow. When
the interrupt is enabled, and the stack is not full and the
T1F bit is set, a subroutine call to location 0CH will occur.
The related interrupt request flag (T1F) will be reset and
the EMI bit cleared to disable further interrupts.
It is recommended that application programs do not use
CALL subroutines within an interrupt subroutine. Interrupts often occur in an unpredictable manner or need to
be serviced immediately in some applications. If only
one stack is left and the interrupt enable is not well controlled, once a CALL subroutine if used in the interrupt
subroutine will corrupt the original control sequence.
Time Base Interrupt is triggered by set INTC.1 (ETBI)
which sets the related interrupt request flag (TBF:bit 4 of
INTC). When the interrupt is enabled, and the stack is not
full and the external interrupt is active, a subroutine call to
location 04H will occur. The interrupt request flag (TBF)
and EMI bits will be cleared to disable other interrupts.
Bit No. Label
During the execution of an interrupt subroutine, other interrupt acknowledgment are held until the ²RETI² instruction is executed or the EMI bit and the related
interrupt control bit are set to ²1² (of course, if the stack
is not full). To return from the interrupt subroutine, the
²RET² or ²RETI² instruction may be invoked. RETI will
set the EMI bit to enable an interrupt service, but RET
will not.
Interrupts occurring in the interval between the rising
edges of two consecutive T2 pulses, will be serviced on
the latter of the two T2 pulses, if the corresponding interrupts are enabled. In the case of simultaneous requests,
the following table shows the priority that is applied.
These can be masked by resetting the EMI bit.
Function
0
EMI
Controls the master (global) interrupt
(1= enabled; 0= disabled)
1
ETBI
Controls the time base interrupt
(1= enabled; 0= disabled)
2
ET0I
Controls the timer 0 interrupt
(1= enabled; 0= disabled)
3
ET1I
Controls the timer 1 interrupt
(1= enabled; 0= disabled)
4
TBF
Time base interrupt request flag
(1= active; 0= inactive)
5
T0F
Timer 0 request flag
(1= active; 0= inactive)
6
T1F
Timer 1 request flag
(1= active; 0= inactive)
7
¾
Unused bit, read as ²0²
INTC (0BH) Register
The Timer Counter 0/1 interrupt request flag (T0F/T1F)
which enables Timer Counter 0/1 control bit (ET0I/ ET1I),
Rev. 1.60
13
November 19, 2008
HT83XXX
Priority
Vector
Time Base Interrupt
Interrupt Source
1
04H
Timer Counter 0 Overflow
2
08H
Timer Counter 1 Overflow
3
0CH
Watchdog Timer - WDT
The WDT clock source is implemented by a dedicated
RC oscillator (WDT oscillator) or instruction clock (system clock divided by 4), decided by mask options. This
timer is designed to prevent a software malfunction or
sequence jumping to an unknown location with unpredictable results. The Watchdog Timer can be disabled
by mask option. If the Watchdog Timer is disabled, all
the executions related to the WDT result in no operation.
Oscillator Configuration
The HT83XXX provides two oscillator circuits for system
clock, i.e., RC oscillator and Crystal oscillator. No matter
what type of oscillator.. The signal is used for the system
clock. The HALT mode stops the system oscillator to
conserve power. If the RC oscillator is used, an external
resistor between OSC1 and VSS is required, and the
range of the resistance should be from 144kW to 275kW.
The system clock, divided by 4. The RC oscillator provides the most cost effective solution. However, the frequency of the oscillation may vary with VDD,
temperature, and the chip itself due to process variations. It is therefore not suitable for timing sensitive operations where accurate oscillator frequency is desired.
Once the internal WDT oscillator (RC oscillator with period 78ms normally) is selected, it is first divided by 256
(8-stages) to get the nominal time-out period of approximately 20ms. This time-out period may vary with temperature, VDD and process variations. By invoking the
WDT prescaler, longer time-out period can be realized.
Writing data to WS2, WS1, WS0 (bit 2,1,0 of
WDTS(09H)) can give different time-out period.
If WS2, WS1, WS0 all equal to 1, the division ratio is up to
1:128, and the maximum time-out period is 2.6 seconds.
If the device operates in a noisy environment, using the
on-chip RC oscillator (WDT OSC) is strongly recommended, since the HALT will stop the system clock.
On the other hand, if the crystal oscillator is selected, a
crystal across OSC1 and OSC2 is needed to provide the
feedback and phase shift required for the oscillator, and
no other external components are required. A resonator
may be connected between OSC1 and OSC2 to replace
the crystal and to get a frequency reference, but two external capacitors in OSC1 and OSC2 are required.
O S C 1
V
fS
O S C 2
Y S
O S C 1
D D
/4
O S C 2
R C
C r y s ta l O s c illa to r
The WDT overflow under normal operation will initialize
a ²chip reset² and set the status bit ²TO². Whereas in
the HALT mode, the overflow will initialize a ²warm re set² only the Program Counter and SP are reset to zero.
To clear the contents of the WDT (including the WDT
prescaler), three methods are adopted; external reset
(external reset (a low level to RES), software instructions, or a ²HALT² instruction. The software instruction
is ²CLR WDT² and execution of the ²CLR WDT² instruction will clear the WDT.
O s c illa to r
System Oscillator
WS7
WS6
WS5
WS4
WS3
WS2
WS1
WS0
Division Ratio
¾
¾
¾
¾
¾
0
0
0
1:1
¾
¾
¾
¾
¾
0
0
1
1:2
¾
¾
¾
¾
¾
0
1
0
1:4
¾
¾
¾
¾
¾
0
1
1
1:8
¾
¾
¾
¾
¾
1
0
0
1:16
¾
¾
¾
¾
¾
1
0
1
1:32
¾
¾
¾
¾
¾
1
1
0
1:64
¾
¾
¾
¾
¾
1
1
1
1:128
WDTS (09H) Register
Rev. 1.60
14
November 19, 2008
HT83XXX
S y s te m
C lo c k /4
W D T
O S C
M a s k
O p tio n
S e le c t
W D T P r e s c a le r
8 - b it C o u n te r
7 - b it C o u n te r
8 -to -1 M U X
W S 0 ~ W S 2
W D T T im e - o u t
Watchdog Timer
Power Down - HALT
abled. To minimize power consumption, all I/O pins
should be carefully managed before entering the HALT
status.
The HALT mode is initialized by a ²HALT² instruction
and results in the following:
· The system oscillator will be turned off but the WDT
Reset
oscillator keeps running (if the WDT oscillator is selected).
There are 3 ways in which a reset can occur:
· RES reset during normal operation
· The contents of the on chip RAM and registers remain
· RES reset during HALT
unchanged.
· WDT time-out reset during normal operation
· WDT and WDT prescaler will be cleared and recount
again.
The WDT time-out during HALT is different from other
chip reset conditions, since it can perform a ²warm re set² that resets only the Program Counter and SP, leaving the other circuits in their original state. Some registers remain unchanged during any other reset
conditions. Most registers are reset to their ²initial condition² when the reset conditions are met. By examining
the PDF flag and TO flag, the program can distinguish
between different ²chip resets².
· All I/O ports maintain their original status.
· The PDF flag is set and the TO flag is cleared.
The system can leave the HALT mode by means of an
external reset, an interrupt, an external falling edge signal on port A or a WDT overflow. An external reset
causes a device initialization and the WDT overflow performs a ²warm reset². By examining the TO and PDF
flags, the reason for the chip reset can be determined.
The PDF flag is cleared when the system powers-up or
executes the ²CLR WDT² instruction, and is set when
the ²HALT² instruction is executed. The TO flag is set if a
WDT time-out occurs, and causes a wake-up that only
resets the Program Counter and Stack Pointer. The
other maintain their original status.
The port A wake-up and interrupt methods can be considered as a continuation of normal execution. Each bit
in port A can be independently selected to wake up the
device by mask option. Awakening from an I/O port
stimulus, the program will resume execution of the next
instruction. If awakening from an interrupt, two sequence may occur. If the related interrupt is disabled or
the interrupt is enabled by the stack is full, the program
will resume execution at the next instruction. If the interrupt is enabled and the stack is not full, the regular interrupt response takes place.
PDF
RESET Conditions
0
0
RES reset during power-up
u
u
RES reset during normal operation
0
1
RES wake-up HALT
1
u
WDT time-out during normal operation
1
1
WDT wake-up HALT
Note: ²u² stands for ²unchanged²
V
D D
R E S
Once a wake-up event occurs, it takes 1024 system
clock period to resume normal operation. In other
words, a dummy cycle period will be inserted after a
wake-up. If the wake-up results from an interrupt acknowledge, the actual interrupt subroutine will be delayed by one more cycle. If the wake-up results in next
instruction execution, this will be executed immediately
after a dummy period is finished. If an interrupt request
flag is set to ²1² before entering the HALT mode, the
wake-up function of the related interrupt will be dis-
Rev. 1.60
TO
Reset Circuit
V D D
R E S
tS
S T
S S T T im e - o u t
C h ip
R e s e t
Reset Timing Chart
15
November 19, 2008
HT83XXX
To guarantee that the system oscillator has started and
stabilized, the SST (System Start-up Timer) provides an
extra-delay of 1024 system clock pulses after a system
power up or when awakening from a HALT state.
The functional unit chip reset status are shown below.
When a system power up occurs, the SST delay is
added during the reset period. But when the reset comes from the RES pin, the SST delay is disabled. Any
wake-up from HALT will enable the SST delay.
H A L T
W D T
W a rm
W D T
R e s e t
T im e - o u t
R e s e t
Program Counter
000H
Interrupt
Disable
Prescaler
Clear
WDT
Clear. After master reset,
WDT begins counting
Timer Counter
Off
Input/Output Ports
Input mode
Stack Pointer
Points to the top of the stack
R E S
C o ld
R e s e t
S S T
1 0 -s ta g e
R ip p le C o u n te r
O S C I
P o w e r - o n D e te c tin g
Reset Configuration
Timer Counter 0/1
The TMR0/TMR1 is internal clock source only, i.e. (TM1, TM0) = (0, 1). There is a 3-bit prescaler (TMRS2, TMRS1,
TMRS0) which defines different division ratio of TMR0/TMR1¢s clock source.
Bit No.
0~2
Label
TMRS2,
TMRS1,
TMRS0
Function
Defines the operating clock source (TMRS2, TMRS1, TMRS0)
000: clock source/2
001: clock source/4
010: clock source/8
011: clock source/16
100: clock source/32
101: clock source/64
110: clock source/128
111: clock source/256
3
TE
Defines the TMR0/TMR1 active edge of Timer Counter
4
TON
Enable/disable timer counting (0=disabled; 1=enabled)
5
¾
6
7
TM0,
TM1
Unused bit, read as ²0²
Defines the operating mode (TM1, TM0)
TMR0C (0EH)/TMR1C (11H) Register
Note:
TMR0C/TMR1C bit 3 always write ²0²
TMR0C/TMR1C bit 5 always write ²0²
TMR0C/TMR1C bit 6 always write ²1²
TMR0C/TMR1C bit 7 always write ²0²
(T M R S 2 , T M R S 1 , T M R S 0 )
S y s te m
C lo c k
D a ta B u s
8 -S ta g e
P r e s c a le r
T im e r C o u n te r 0 /1
P r e lo a d R e g is te r
R e lo a d
T O N
T im e r C o u n te r 0 /1
O v e r flo w
to In te rru p t
Timer Counter 0/1
Rev. 1.60
16
November 19, 2008
HT83XXX
The TMR0C is the Timer Counter 0 control register,
which defines the Timer Counter 0 options. The Timer
Counter 1 has the same options as the Timer Counter 0
and is defined by TMR1C.
Time Base
The time base enables the counting operation by
INTC.1 (ETBI) bit. The overflow to interrupt as set
INTC.4. The time base is internal clock source only.
Time base of 1ms to overflow as system clock is 4MHz.
Time base of 0.5ms to overflow as system clock is
8MHz.
To enable the counting operation, the Timer ON bit
(TON; bit 4 of TMR0C/TMR1C) should be set to ²1². The
overflow of the timer counter is one of the wake-up
sources. No matter what the operation mode is, writing a
0 to ET0I/ET1I can disable the corresponding interrupt
service.
S y s te m
C lo c k /4
¸
1 0 2 4
O v e r flo w
to In te rru p t
Time Base
The TMR0/1 is internal clock source only. There is a
3-bit prescaler (TMRS2, TMRS1, TMRS0) which defines different division ratio of TMR0/1¢s clock source.
The registers states are summarized in the following table.
Register Reset (Power-on)
WDT Time-out
RES Reset
(Normal Operation) (Normal Operation)
RES Reset
(HALT)
WDT Time-out
(HALT)
MP0
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
ACC
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
0000H
0000H
0000H
0000H
0000H
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
Program
Counter
TBLP
TBLH
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
WDTS
0000 0111
0000 0111
0000 0111
0000 0111
uuuu uuuu
STATUS
--00 xxxx
--1u uuuu
--uu uuuu
--01 uuuu
--11 uuuu
INTC
-000 0000
-000 0000
-000 0000
-000 0000
-uuu uuuu
TMR0
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
TMR0C
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
TMR1
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
TMR1C
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
PA
1111 1111
1111 1111
1111 1111
1111 1111
uuuu uuuu
PAC
1111 1111
1111 1111
1111 1111
1111 1111
uuuu uuuu
PB
---- 1111
---- 1111
---- 1111
---- 1111
---- uuuu
PBC
---- 1111
---- 1111
---- 1111
---- 1111
---- uuuu
LATCH0H
---- --xx
---- --uu
---- --uu
---- --uu
---- --uu
LATCH0M
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
LATCH0L
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
PWMCR
0--- 00-0
u--- uu-u
u--- uu-u
u--- uu-u
u--- uu-u
PWML
xxxx ----
uuuu ----
uuuu ----
uuuu ----
uuuu ----
PWMH
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu
uuuu uuuu
xxxx ----
uuuu ----
uuuu ----
uuuu ----
uuuu ----
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
VOL
LATCHD
Note:
²u² means ²unchanged²
²x² means ²unknown²
²-² means ²undefined²
Rev. 1.60
17
November 19, 2008
HT83XXX
These control registers are mapped to locations 13Hm
15H.
Input/Output Ports
There are 12 bidirectional input/output lines in the
microcontroller, labeled from PA to PB, which are
mapped to the data memory of [12H], [14H] respectively. All of these I/O ports can be used for input and
output operations. For input operation, these ports are
non-latching, that is, the inputs must be ready at the T2
rising edge of instruction ²MOV A, [m]² (m=12H, 14H).
For output operation, all the data is latched and remains
unchanged until the output latch is rewritten.
After a chip reset, these input/output lines remain at high
levels or floating state (dependent on pull-high options).
Each bit of these input/output latches can be set or
cleared by ²SET [m].i² and ²CLR [m].i² (m=12H, 14H) instructions.
Some instructions first input data and then follow the
output operations. For example, ²SET [m].i², ²CLR
[m].i², ²CPL [m]², ²CPLA [m]² read the entire port states
into the CPU, execute the defined operations
(bit-operation), and then write the results back to the
latches or the accumulator.
Each I/O line has its own control register (PAC, PBC) to
control the input/output configuration. With this control
register, CMOS output or Schmitt trigger input with or
without pull-high resistor structures can be reconfigured
dynamically under software control. To function as an input, the corresponding latch of the control register must
write ²1². The input source also depends on the control
register. If the control register bit is ²1², the input will
read the pad state. If the control register bit is ²0², the
contents of the latches will move to the internal bus. The
latter is possible in the ²read-modify-write² instruction.
Each line of port A has the capability of waking-up the
device. The wake-up capability of port A is determined
by mask option. There is a pull-high option available for
all I/O lines. Once the pull-high option is selected, all I/O
lines have pull-high resistors. Otherwise, the pull-high
resistors are absent. It should be noted that a
non-pull-high I/O line operating in input mode will cause
a floating state.
For output function, CMOS is the only configuration.
D a ta B u s
V
D
W r ite C o n tr o l R e g is te r
Q
C K
Q
S
V
C h ip R e s e t
D
P A 0 ~ P A 7
P B 0 ~ P B 3
Q
C K
S
Q
M
R e a d I/O
S y s te m
W e a k
P u ll- u p
M a s k O p tio n
R e a d C o n tr o l R e g is te r
W r ite I/O
D D
D D
U
X
W a k e - U p ( P A o n ly )
M a s k O p tio n
Input/Output Ports
Rev. 1.60
18
November 19, 2008
HT83XXX
Pulse Width Modulation Output - PWML/PWMH (27H/28H)
The HT83XXX provide one 12-bit PWM interface for driving an external 8W speaker. The programmer must write the
voice data to register PWML/PWMH (27H/28H)
Pulse Width Modulation Control Register - PWMCR (26H)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3 (R/W)
Bit 2 (R/W)
Bit 1
Bit 0 (R/W)
MSB_SIGN
¾
¾
¾
Single_PWM
VROMC
¾
PWMC
PWMC: Start bit of PWM output
Voice ROM Data Address Latch Counter
· PWM start counter: 0 to 1
The voice ROM data address latch counter is the handshaking between the microcontroller and voice ROM,
where the voice codes are stored. One 8-bit of voice
ROM data will be addressed by setting 18-bit address
latch counter LATCH0H/LATCH0M/LATCH0L. After the
8-bit voice ROM data is addressed, a few instruction cycles (4ms at least) will be generated to latch the voice
ROM data, then the microcontroller can read the voice
data from LATCHD (2AH).
· PWM stop counter: 1 to 0
After waiting one cycle end , stop the PWM counter and
keep in low signal
VROMC: Enable voice ROM power circuit
(1=enable; 0=disable)
Single_PWM: Driving PWM signal by PWM1 output.
(1=PWM1 output; 0=PWM1/PWM2 output)
Example: Read an 8-bit voice ROM data which is located at address 000007H by address latch 0
The HT83XXX provide an 12-bit (bit 7 is a sign bit, if Single_PWM = 0) PWM interface. The PWM provides two
pad outputs: PWM1, PWM2 which can directly drive a
piezo or an 8W speaker without adding any external element (green mode), or using only port PWM1 (Set Single_PWM = 1) to drive piezo or an 8W speaker with
external element.
When Setting Single_PWM= 1, choose voice data7~
data1 as the output data (no sign bit on it).
If the sign bit is 0, then the signal is output to PWM1and
the PWM2 will get a GND level voltage after setting start
bit to 1. If the sign bit is 1, then the signal is output to
PWM2 and the PWM1 will get a GND level voltage after
setting start bit to 1.
set
[26H].2
; Enable voice ROM circuit
mov
A, 07H
;
mov
LATCH0L, A ; Set LATCH0L to 07H
mov
A, 00H
mov
LATCH0M, A ; Set LATCH0M to 00H
mov
A, 00H
mov
LATCH0H, A ; Set LATCH0H to 00H
call
Delay Time
; Delay a short period of time
mov
A, LATCHD
; Get voice data at 000007H
;
;
PWM output Initial low level , and stop in low level
If PWMC from low to high then start PWM output latch
new data , if no update then keep the old value.
If PWMC from high to low, in duty end, stop PWM output
and stop the counter.
D a ta B u s
S y s te m
C lo c k
F 0
S ta r t b it
2 6 H .0
P W M I
P W M D a ta
B u ffe r (2 8 H )
P r e s c a le r
D iv .
F 2
F 1
C K
P E
B it7 ( s ig n b it)
7 B its C o u n te r
( B it6 ~ B it0 )
O v e r flo w
V
D D
D
Q
Q
C K
R
P W M 1 fo r S p e a k e r
P W M 2 fo r S p e a k e r
PWM
Rev. 1.60
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November 19, 2008
HT83XXX
Mask Option
Mask Option
Description
PA Wake-up
Enable or disable PA wake-up function
Watchdog Timer (WDT)
Enable or disable WDT function
WDT clock source is from WDTOSC or T1
PA Pull-high
Enable or disable PA pull-high
PB Pull-high
Enable or disable PB pull-high
OSC Option
Crystal or Resistor type
fOSC - RTYPICAL Table (VDD=3V)
fOSC
RTYPICAL
4MHz±10%
6MHz±10%
8MHz±10%
275kW
188kW
144kW
Application Circuits
V
D D
V D D
V S S
O S C 1
R
V
V
D D
O S C
D D
V D D P
1 0 0 k W
4 7 m F
V S S P
R E S
0 .1 m F
C
P A 0 ~ P A 7
P B 0 ~ P B 3
S p e a k e r
P W M 1
P W M 2
(8 W /1 6 W )
H T 8 3 X X X
Single PWM Mode
V
D D
O S C 2
V D D
4 M H z ~ 8 M H z
V S S
V
O S C 1
V
D D
D D
V D D P
1 0 0 k W
0 .1 m F
C
4 7 m F
V S S P
R E S
P A 0 ~ P A 7
P B 0 ~ P B 3
P W M 1
V
D D
S p e a k e r
(8 W /1 6 W )
Q 2
N P N B C E
H T 8 3 X X X
Rev. 1.60
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November 19, 2008
HT83XXX
Instruction Set
subtract instruction mnemonics to enable the necessary
arithmetic to be carried out. Care must be taken to ensure correct handling of carry and borrow data when results exceed 255 for addition and less than 0 for
subtraction. The increment and decrement instructions
INC, INCA, DEC and DECA provide a simple means of
increasing or decreasing by a value of one of the values
in the destination specified.
Introduction
Central to the successful operation of any
microcontroller is its instruction set, which is a set of program instruction codes that directs the microcontroller to
perform certain operations. In the case of Holtek
microcontrollers, a comprehensive and flexible set of
over 60 instructions is provided to enable programmers
to implement their application with the minimum of programming overheads.
Logical and Rotate Operations
For easier understanding of the various instruction
codes, they have been subdivided into several functional groupings.
The standard logical operations such as AND, OR, XOR
and CPL all have their own instruction within the Holtek
microcontroller instruction set. As with the case of most
instructions involving data manipulation, data must pass
through the Accumulator which may involve additional
programming steps. In all logical data operations, the
zero flag may be set if the result of the operation is zero.
Another form of logical data manipulation comes from
the rotate instructions such as RR, RL, RRC and RLC
which provide a simple means of rotating one bit right or
left. Different rotate instructions exist depending on program requirements. Rotate instructions are useful for
serial port programming applications where data can be
rotated from an internal register into the Carry bit from
where it can be examined and the necessary serial bit
set high or low. Another application where rotate data
operations are used is to implement multiplication and
division calculations.
Instruction Timing
Most instructions are implemented within one instruction cycle. The exceptions to this are branch, call, or table read instructions where two instruction cycles are
required. One instruction cycle is equal to 4 system
clock cycles, therefore in the case of an 8MHz system
oscillator, most instructions would be implemented
within 0.5ms and branch or call instructions would be implemented within 1ms. Although instructions which require one more cycle to implement are generally limited
to the JMP, CALL, RET, RETI and table read instructions, it is important to realize that any other instructions
which involve manipulation of the Program Counter Low
register or PCL will also take one more cycle to implement. As instructions which change the contents of the
PCL will imply a direct jump to that new address, one
more cycle will be required. Examples of such instructions would be ²CLR PCL² or ²MOV PCL, A². For the
case of skip instructions, it must be noted that if the result of the comparison involves a skip operation then
this will also take one more cycle, if no skip is involved
then only one cycle is required.
Branches and Control Transfer
Program branching takes the form of either jumps to
specified locations using the JMP instruction or to a subroutine using the CALL instruction. They differ in the
sense that in the case of a subroutine call, the program
must return to the instruction immediately when the subroutine has been carried out. This is done by placing a
return instruction RET in the subroutine which will cause
the program to jump back to the address right after the
CALL instruction. In the case of a JMP instruction, the
program simply jumps to the desired location. There is
no requirement to jump back to the original jumping off
point as in the case of the CALL instruction. One special
and extremely useful set of branch instructions are the
conditional branches. Here a decision is first made regarding the condition of a certain data memory or individual bits. Depending upon the conditions, the program
will continue with the next instruction or skip over it and
jump to the following instruction. These instructions are
the key to decision making and branching within the program perhaps determined by the condition of certain input switches or by the condition of internal data bits.
Moving and Transferring Data
The transfer of data within the microcontroller program
is one of the most frequently used operations. Making
use of three kinds of MOV instructions, data can be
transferred from registers to the Accumulator and
vice-versa as well as being able to move specific immediate data directly into the Accumulator. One of the most
important data transfer applications is to receive data
from the input ports and transfer data to the output ports.
Arithmetic Operations
The ability to perform certain arithmetic operations and
data manipulation is a necessary feature of most
microcontroller applications. Within the Holtek
microcontroller instruction set are a range of add and
Rev. 1.60
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November 19, 2008
HT83XXX
Bit Operations
Other Operations
The ability to provide single bit operations on Data Memory is an extremely flexible feature of all Holtek
microcontrollers. This feature is especially useful for
output port bit programming where individual bits or port
pins can be directly set high or low using either the ²SET
[m].i² or ²CLR [m].i² instructions respectively. The feature removes the need for programmers to first read the
8-bit output port, manipulate the input data to ensure
that other bits are not changed and then output the port
with the correct new data. This read-modify-write process is taken care of automatically when these bit operation instructions are used.
In addition to the above functional instructions, a range
of other instructions also exist such as the ²HALT² instruction for Power-down operations and instructions to
control the operation of the Watchdog Timer for reliable
program operations under extreme electric or electromagnetic environments. For their relevant operations,
refer to the functional related sections.
Instruction Set Summary
The following table depicts a summary of the instruction
set categorised according to function and can be consulted as a basic instruction reference using the following listed conventions.
Table Read Operations
Table conventions:
Data storage is normally implemented by using registers. However, when working with large amounts of
fixed data, the volume involved often makes it inconvenient to store the fixed data in the Data Memory. To overcome this problem, Holtek microcontrollers allow an
area of Program Memory to be setup as a table where
data can be directly stored. A set of easy to use instructions provides the means by which this fixed data can be
referenced and retrieved from the Program Memory.
Mnemonic
x: Bits immediate data
m: Data Memory address
A: Accumulator
i: 0~7 number of bits
addr: Program memory address
Description
Cycles
Flag Affected
1
1Note
1
1
1Note
1
1
1Note
1
1Note
1Note
Z, C, AC, OV
Z, C, AC, OV
Z, C, AC, OV
Z, C, AC, OV
Z, C, AC, OV
Z, C, AC, OV
Z, C, AC, OV
Z, C, AC, OV
Z, C, AC, OV
Z, C, AC, OV
C
1
1
1
1Note
1Note
1Note
1
1
1
1Note
1
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
1
1Note
1
1Note
Z
Z
Z
Z
Arithmetic
ADD A,[m]
ADDM A,[m]
ADD A,x
ADC A,[m]
ADCM A,[m]
SUB A,x
SUB A,[m]
SUBM A,[m]
SBC A,[m]
SBCM A,[m]
DAA [m]
Add Data Memory to ACC
Add ACC to Data Memory
Add immediate data to ACC
Add Data Memory to ACC with Carry
Add ACC to Data memory with Carry
Subtract immediate data from the ACC
Subtract Data Memory from ACC
Subtract Data Memory from ACC with result in Data Memory
Subtract Data Memory from ACC with Carry
Subtract Data Memory from ACC with Carry, result in Data Memory
Decimal adjust ACC for Addition with result in Data Memory
Logic Operation
AND A,[m]
OR A,[m]
XOR A,[m]
ANDM A,[m]
ORM A,[m]
XORM A,[m]
AND A,x
OR A,x
XOR A,x
CPL [m]
CPLA [m]
Logical AND Data Memory to ACC
Logical OR Data Memory to ACC
Logical XOR Data Memory to ACC
Logical AND ACC to Data Memory
Logical OR ACC to Data Memory
Logical XOR ACC to Data Memory
Logical AND immediate Data to ACC
Logical OR immediate Data to ACC
Logical XOR immediate Data to ACC
Complement Data Memory
Complement Data Memory with result in ACC
Increment & Decrement
INCA [m]
INC [m]
DECA [m]
DEC [m]
Rev. 1.60
Increment Data Memory with result in ACC
Increment Data Memory
Decrement Data Memory with result in ACC
Decrement Data Memory
22
November 19, 2008
HT83XXX
Mnemonic
Description
Cycles
Flag Affected
Rotate Data Memory right with result in ACC
Rotate Data Memory right
Rotate Data Memory right through Carry with result in ACC
Rotate Data Memory right through Carry
Rotate Data Memory left with result in ACC
Rotate Data Memory left
Rotate Data Memory left through Carry with result in ACC
Rotate Data Memory left through Carry
1
1Note
1
1Note
1
1Note
1
1Note
None
None
C
C
None
None
C
C
Move Data Memory to ACC
Move ACC to Data Memory
Move immediate data to ACC
1
1Note
1
None
None
None
Clear bit of Data Memory
Set bit of Data Memory
1Note
1Note
None
None
Jump unconditionally
Skip if Data Memory is zero
Skip if Data Memory is zero with data movement to ACC
Skip if bit i of Data Memory is zero
Skip if bit i of Data Memory is not zero
Skip if increment Data Memory is zero
Skip if decrement Data Memory is zero
Skip if increment Data Memory is zero with result in ACC
Skip if decrement Data Memory is zero with result in ACC
Subroutine call
Return from subroutine
Return from subroutine and load immediate data to ACC
Return from interrupt
2
1Note
1note
1Note
1Note
1Note
1Note
1Note
1Note
2
2
2
2
None
None
None
None
None
None
None
None
None
None
None
None
None
Read table (current page) to TBLH and Data Memory
Read table (last page) to TBLH and Data Memory
2Note
2Note
None
None
No operation
Clear Data Memory
Set Data Memory
Clear Watchdog Timer
Pre-clear Watchdog Timer
Pre-clear Watchdog Timer
Swap nibbles of Data Memory
Swap nibbles of Data Memory with result in ACC
Enter power down mode
1
1Note
1Note
1
1
1
1Note
1
1
None
None
None
TO, PDF
TO, PDF
TO, PDF
None
None
TO, PDF
Rotate
RRA [m]
RR [m]
RRCA [m]
RRC [m]
RLA [m]
RL [m]
RLCA [m]
RLC [m]
Data Move
MOV A,[m]
MOV [m],A
MOV A,x
Bit Operation
CLR [m].i
SET [m].i
Branch
JMP addr
SZ [m]
SZA [m]
SZ [m].i
SNZ [m].i
SIZ [m]
SDZ [m]
SIZA [m]
SDZA [m]
CALL addr
RET
RET A,x
RETI
Table Read
TABRDC [m]
TABRDL [m]
Miscellaneous
NOP
CLR [m]
SET [m]
CLR WDT
CLR WDT1
CLR WDT2
SWAP [m]
SWAPA [m]
HALT
Note:
1. For skip instructions, if the result of the comparison involves a skip then two cycles are required,
if no skip takes place only one cycle is required.
2. Any instruction which changes the contents of the PCL will also require 2 cycles for execution.
3. For the ²CLR WDT1² and ²CLR WDT2² instructions the TO and PDF flags may be affected by
the execution status. The TO and PDF flags are cleared after both ²CLR WDT1² and
²CLR WDT2² instructions are consecutively executed. Otherwise the TO and PDF flags
remain unchanged.
Rev. 1.60
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November 19, 2008
HT83XXX
Instruction Definition
ADC A,[m]
Add Data Memory to ACC with Carry
Description
The contents of the specified Data Memory, Accumulator and the carry flag are added. The
result is stored in the Accumulator.
Operation
ACC ¬ ACC + [m] + C
Affected flag(s)
OV, Z, AC, C
ADCM A,[m]
Add ACC to Data Memory with Carry
Description
The contents of the specified Data Memory, Accumulator and the carry flag are added. The
result is stored in the specified Data Memory.
Operation
[m] ¬ ACC + [m] + C
Affected flag(s)
OV, Z, AC, C
ADD A,[m]
Add Data Memory to ACC
Description
The contents of the specified Data Memory and the Accumulator are added. The result is
stored in the Accumulator.
Operation
ACC ¬ ACC + [m]
Affected flag(s)
OV, Z, AC, C
ADD A,x
Add immediate data to ACC
Description
The contents of the Accumulator and the specified immediate data are added. The result is
stored in the Accumulator.
Operation
ACC ¬ ACC + x
Affected flag(s)
OV, Z, AC, C
ADDM A,[m]
Add ACC to Data Memory
Description
The contents of the specified Data Memory and the Accumulator are added. The result is
stored in the specified Data Memory.
Operation
[m] ¬ ACC + [m]
Affected flag(s)
OV, Z, AC, C
AND A,[m]
Logical AND Data Memory to ACC
Description
Data in the Accumulator and the specified Data Memory perform a bitwise logical AND operation. The result is stored in the Accumulator.
Operation
ACC ¬ ACC ²AND² [m]
Affected flag(s)
Z
AND A,x
Logical AND immediate data to ACC
Description
Data in the Accumulator and the specified immediate data perform a bitwise logical AND
operation. The result is stored in the Accumulator.
Operation
ACC ¬ ACC ²AND² x
Affected flag(s)
Z
ANDM A,[m]
Logical AND ACC to Data Memory
Description
Data in the specified Data Memory and the Accumulator perform a bitwise logical AND operation. The result is stored in the Data Memory.
Operation
[m] ¬ ACC ²AND² [m]
Affected flag(s)
Z
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November 19, 2008
HT83XXX
CALL addr
Subroutine call
Description
Unconditionally calls a subroutine at the specified address. The Program Counter then increments by 1 to obtain the address of the next instruction which is then pushed onto the
stack. The specified address is then loaded and the program continues execution from this
new address. As this instruction requires an additional operation, it is a two cycle instruction.
Operation
Stack ¬ Program Counter + 1
Program Counter ¬ addr
Affected flag(s)
None
CLR [m]
Clear Data Memory
Description
Each bit of the specified Data Memory is cleared to 0.
Operation
[m] ¬ 00H
Affected flag(s)
None
CLR [m].i
Clear bit of Data Memory
Description
Bit i of the specified Data Memory is cleared to 0.
Operation
[m].i ¬ 0
Affected flag(s)
None
CLR WDT
Clear Watchdog Timer
Description
The TO, PDF flags and the WDT are all cleared.
Operation
WDT cleared
TO ¬ 0
PDF ¬ 0
Affected flag(s)
TO, PDF
CLR WDT1
Pre-clear Watchdog Timer
Description
The TO, PDF flags and the WDT are all cleared. Note that this instruction works in conjunction with CLR WDT2 and must be executed alternately with CLR WDT2 to have effect. Repetitively executing this instruction without alternately executing CLR WDT2 will have no
effect.
Operation
WDT cleared
TO ¬ 0
PDF ¬ 0
Affected flag(s)
TO, PDF
CLR WDT2
Pre-clear Watchdog Timer
Description
The TO, PDF flags and the WDT are all cleared. Note that this instruction works in conjunction with CLR WDT1 and must be executed alternately with CLR WDT1 to have effect. Repetitively executing this instruction without alternately executing CLR WDT1 will have no
effect.
Operation
WDT cleared
TO ¬ 0
PDF ¬ 0
Affected flag(s)
TO, PDF
Rev. 1.60
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November 19, 2008
HT83XXX
CPL [m]
Complement Data Memory
Description
Each bit of the specified Data Memory is logically complemented (1¢s complement). Bits
which previously contained a 1 are changed to 0 and vice versa.
Operation
[m] ¬ [m]
Affected flag(s)
Z
CPLA [m]
Complement Data Memory with result in ACC
Description
Each bit of the specified Data Memory is logically complemented (1¢s complement). Bits
which previously contained a 1 are changed to 0 and vice versa. The complemented result
is stored in the Accumulator and the contents of the Data Memory remain unchanged.
Operation
ACC ¬ [m]
Affected flag(s)
Z
DAA [m]
Decimal-Adjust ACC for addition with result in Data Memory
Description
Convert the contents of the Accumulator value to a BCD ( Binary Coded Decimal) value resulting from the previous addition of two BCD variables. If the low nibble is greater than 9 or
if AC flag is set, then a value of 6 will be added to the low nibble. Otherwise the low nibble
remains unchanged. If the high nibble is greater than 9 or if the C flag is set, then a value of
6 will be added to the high nibble. Essentially, the decimal conversion is performed by adding 00H, 06H, 60H or 66H depending on the Accumulator and flag conditions. Only the C
flag may be affected by this instruction which indicates that if the original BCD sum is
greater than 100, it allows multiple precision decimal addition.
Operation
[m] ¬ ACC + 00H or
[m] ¬ ACC + 06H or
[m] ¬ ACC + 60H or
[m] ¬ ACC + 66H
Affected flag(s)
C
DEC [m]
Decrement Data Memory
Description
Data in the specified Data Memory is decremented by 1.
Operation
[m] ¬ [m] - 1
Affected flag(s)
Z
DECA [m]
Decrement Data Memory with result in ACC
Description
Data in the specified Data Memory is decremented by 1. The result is stored in the Accumulator. The contents of the Data Memory remain unchanged.
Operation
ACC ¬ [m] - 1
Affected flag(s)
Z
HALT
Enter power down mode
Description
This instruction stops the program execution and turns off the system clock. The contents
of the Data Memory and registers are retained. The WDT and prescaler are cleared. The
power down flag PDF is set and the WDT time-out flag TO is cleared.
Operation
TO ¬ 0
PDF ¬ 1
Affected flag(s)
TO, PDF
Rev. 1.60
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November 19, 2008
HT83XXX
INC [m]
Increment Data Memory
Description
Data in the specified Data Memory is incremented by 1.
Operation
[m] ¬ [m] + 1
Affected flag(s)
Z
INCA [m]
Increment Data Memory with result in ACC
Description
Data in the specified Data Memory is incremented by 1. The result is stored in the Accumulator. The contents of the Data Memory remain unchanged.
Operation
ACC ¬ [m] + 1
Affected flag(s)
Z
JMP addr
Jump unconditionally
Description
The contents of the Program Counter are replaced with the specified address. Program
execution then continues from this new address. As this requires the insertion of a dummy
instruction while the new address is loaded, it is a two cycle instruction.
Operation
Program Counter ¬ addr
Affected flag(s)
None
MOV A,[m]
Move Data Memory to ACC
Description
The contents of the specified Data Memory are copied to the Accumulator.
Operation
ACC ¬ [m]
Affected flag(s)
None
MOV A,x
Move immediate data to ACC
Description
The immediate data specified is loaded into the Accumulator.
Operation
ACC ¬ x
Affected flag(s)
None
MOV [m],A
Move ACC to Data Memory
Description
The contents of the Accumulator are copied to the specified Data Memory.
Operation
[m] ¬ ACC
Affected flag(s)
None
NOP
No operation
Description
No operation is performed. Execution continues with the next instruction.
Operation
No operation
Affected flag(s)
None
OR A,[m]
Logical OR Data Memory to ACC
Description
Data in the Accumulator and the specified Data Memory perform a bitwise logical OR operation. The result is stored in the Accumulator.
Operation
ACC ¬ ACC ²OR² [m]
Affected flag(s)
Z
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HT83XXX
OR A,x
Logical OR immediate data to ACC
Description
Data in the Accumulator and the specified immediate data perform a bitwise logical OR operation. The result is stored in the Accumulator.
Operation
ACC ¬ ACC ²OR² x
Affected flag(s)
Z
ORM A,[m]
Logical OR ACC to Data Memory
Description
Data in the specified Data Memory and the Accumulator perform a bitwise logical OR operation. The result is stored in the Data Memory.
Operation
[m] ¬ ACC ²OR² [m]
Affected flag(s)
Z
RET
Return from subroutine
Description
The Program Counter is restored from the stack. Program execution continues at the restored address.
Operation
Program Counter ¬ Stack
Affected flag(s)
None
RET A,x
Return from subroutine and load immediate data to ACC
Description
The Program Counter is restored from the stack and the Accumulator loaded with the
specified immediate data. Program execution continues at the restored address.
Operation
Program Counter ¬ Stack
ACC ¬ x
Affected flag(s)
None
RETI
Return from interrupt
Description
The Program Counter is restored from the stack and the interrupts are re-enabled by setting the EMI bit. EMI is the master interrupt global enable bit. If an interrupt was pending
when the RETI instruction is executed, the pending Interrupt routine will be processed before returning to the main program.
Operation
Program Counter ¬ Stack
EMI ¬ 1
Affected flag(s)
None
RL [m]
Rotate Data Memory left
Description
The contents of the specified Data Memory are rotated left by 1 bit with bit 7 rotated into bit
0.
Operation
[m].(i+1) ¬ [m].i; (i = 0~6)
[m].0 ¬ [m].7
Affected flag(s)
None
RLA [m]
Rotate Data Memory left with result in ACC
Description
The contents of the specified Data Memory are rotated left by 1 bit with bit 7 rotated into bit
0. The rotated result is stored in the Accumulator and the contents of the Data Memory remain unchanged.
Operation
ACC.(i+1) ¬ [m].i; (i = 0~6)
ACC.0 ¬ [m].7
Affected flag(s)
None
Rev. 1.60
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HT83XXX
RLC [m]
Rotate Data Memory left through Carry
Description
The contents of the specified Data Memory and the carry flag are rotated left by 1 bit. Bit 7
replaces the Carry bit and the original carry flag is rotated into bit 0.
Operation
[m].(i+1) ¬ [m].i; (i = 0~6)
[m].0 ¬ C
C ¬ [m].7
Affected flag(s)
C
RLCA [m]
Rotate Data Memory left through Carry with result in ACC
Description
Data in the specified Data Memory and the carry flag are rotated left by 1 bit. Bit 7 replaces
the Carry bit and the original carry flag is rotated into the bit 0. The rotated result is stored in
the Accumulator and the contents of the Data Memory remain unchanged.
Operation
ACC.(i+1) ¬ [m].i; (i = 0~6)
ACC.0 ¬ C
C ¬ [m].7
Affected flag(s)
C
RR [m]
Rotate Data Memory right
Description
The contents of the specified Data Memory are rotated right by 1 bit with bit 0 rotated into
bit 7.
Operation
[m].i ¬ [m].(i+1); (i = 0~6)
[m].7 ¬ [m].0
Affected flag(s)
None
RRA [m]
Rotate Data Memory right with result in ACC
Description
Data in the specified Data Memory and the carry flag are rotated right by 1 bit with bit 0 rotated into bit 7. The rotated result is stored in the Accumulator and the contents of the Data
Memory remain unchanged.
Operation
ACC.i ¬ [m].(i+1); (i = 0~6)
ACC.7 ¬ [m].0
Affected flag(s)
None
RRC [m]
Rotate Data Memory right through Carry
Description
The contents of the specified Data Memory and the carry flag are rotated right by 1 bit. Bit 0
replaces the Carry bit and the original carry flag is rotated into bit 7.
Operation
[m].i ¬ [m].(i+1); (i = 0~6)
[m].7 ¬ C
C ¬ [m].0
Affected flag(s)
C
RRCA [m]
Rotate Data Memory right through Carry with result in ACC
Description
Data in the specified Data Memory and the carry flag are rotated right by 1 bit. Bit 0 replaces the Carry bit and the original carry flag is rotated into bit 7. The rotated result is
stored in the Accumulator and the contents of the Data Memory remain unchanged.
Operation
ACC.i ¬ [m].(i+1); (i = 0~6)
ACC.7 ¬ C
C ¬ [m].0
Affected flag(s)
C
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HT83XXX
SBC A,[m]
Subtract Data Memory from ACC with Carry
Description
The contents of the specified Data Memory and the complement of the carry flag are subtracted from the Accumulator. The result is stored in the Accumulator. Note that if the result
of subtraction is negative, the C flag will be cleared to 0, otherwise if the result is positive or
zero, the C flag will be set to 1.
Operation
ACC ¬ ACC - [m] - C
Affected flag(s)
OV, Z, AC, C
SBCM A,[m]
Subtract Data Memory from ACC with Carry and result in Data Memory
Description
The contents of the specified Data Memory and the complement of the carry flag are subtracted from the Accumulator. The result is stored in the Data Memory. Note that if the result of subtraction is negative, the C flag will be cleared to 0, otherwise if the result is
positive or zero, the C flag will be set to 1.
Operation
[m] ¬ ACC - [m] - C
Affected flag(s)
OV, Z, AC, C
SDZ [m]
Skip if decrement Data Memory is 0
Description
The contents of the specified Data Memory are first decremented by 1. If the result is 0 the
following instruction is skipped. As this requires the insertion of a dummy instruction while
the next instruction is fetched, it is a two cycle instruction. If the result is not 0 the program
proceeds with the following instruction.
Operation
[m] ¬ [m] - 1
Skip if [m] = 0
Affected flag(s)
None
SDZA [m]
Skip if decrement Data Memory is zero with result in ACC
Description
The contents of the specified Data Memory are first decremented by 1. If the result is 0, the
following instruction is skipped. The result is stored in the Accumulator but the specified
Data Memory contents remain unchanged. As this requires the insertion of a dummy instruction while the next instruction is fetched, it is a two cycle instruction. If the result is not
0, the program proceeds with the following instruction.
Operation
ACC ¬ [m] - 1
Skip if ACC = 0
Affected flag(s)
None
SET [m]
Set Data Memory
Description
Each bit of the specified Data Memory is set to 1.
Operation
[m] ¬ FFH
Affected flag(s)
None
SET [m].i
Set bit of Data Memory
Description
Bit i of the specified Data Memory is set to 1.
Operation
[m].i ¬ 1
Affected flag(s)
None
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HT83XXX
SIZ [m]
Skip if increment Data Memory is 0
Description
The contents of the specified Data Memory are first incremented by 1. If the result is 0, the
following instruction is skipped. As this requires the insertion of a dummy instruction while
the next instruction is fetched, it is a two cycle instruction. If the result is not 0 the program
proceeds with the following instruction.
Operation
[m] ¬ [m] + 1
Skip if [m] = 0
Affected flag(s)
None
SIZA [m]
Skip if increment Data Memory is zero with result in ACC
Description
The contents of the specified Data Memory are first incremented by 1. If the result is 0, the
following instruction is skipped. The result is stored in the Accumulator but the specified
Data Memory contents remain unchanged. As this requires the insertion of a dummy instruction while the next instruction is fetched, it is a two cycle instruction. If the result is not
0 the program proceeds with the following instruction.
Operation
ACC ¬ [m] + 1
Skip if ACC = 0
Affected flag(s)
None
SNZ [m].i
Skip if bit i of Data Memory is not 0
Description
If bit i of the specified Data Memory is not 0, the following instruction is skipped. As this requires the insertion of a dummy instruction while the next instruction is fetched, it is a two
cycle instruction. If the result is 0 the program proceeds with the following instruction.
Operation
Skip if [m].i ¹ 0
Affected flag(s)
None
SUB A,[m]
Subtract Data Memory from ACC
Description
The specified Data Memory is subtracted from the contents of the Accumulator. The result
is stored in the Accumulator. Note that if the result of subtraction is negative, the C flag will
be cleared to 0, otherwise if the result is positive or zero, the C flag will be set to 1.
Operation
ACC ¬ ACC - [m]
Affected flag(s)
OV, Z, AC, C
SUBM A,[m]
Subtract Data Memory from ACC with result in Data Memory
Description
The specified Data Memory is subtracted from the contents of the Accumulator. The result
is stored in the Data Memory. Note that if the result of subtraction is negative, the C flag will
be cleared to 0, otherwise if the result is positive or zero, the C flag will be set to 1.
Operation
[m] ¬ ACC - [m]
Affected flag(s)
OV, Z, AC, C
SUB A,x
Subtract immediate data from ACC
Description
The immediate data specified by the code is subtracted from the contents of the Accumulator. The result is stored in the Accumulator. Note that if the result of subtraction is negative, the C flag will be cleared to 0, otherwise if the result is positive or zero, the C flag will
be set to 1.
Operation
ACC ¬ ACC - x
Affected flag(s)
OV, Z, AC, C
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HT83XXX
SWAP [m]
Swap nibbles of Data Memory
Description
The low-order and high-order nibbles of the specified Data Memory are interchanged.
Operation
[m].3~[m].0 « [m].7 ~ [m].4
Affected flag(s)
None
SWAPA [m]
Swap nibbles of Data Memory with result in ACC
Description
The low-order and high-order nibbles of the specified Data Memory are interchanged. The
result is stored in the Accumulator. The contents of the Data Memory remain unchanged.
Operation
ACC.3 ~ ACC.0 ¬ [m].7 ~ [m].4
ACC.7 ~ ACC.4 ¬ [m].3 ~ [m].0
Affected flag(s)
None
SZ [m]
Skip if Data Memory is 0
Description
If the contents of the specified Data Memory is 0, the following instruction is skipped. As
this requires the insertion of a dummy instruction while the next instruction is fetched, it is a
two cycle instruction. If the result is not 0 the program proceeds with the following instruction.
Operation
Skip if [m] = 0
Affected flag(s)
None
SZA [m]
Skip if Data Memory is 0 with data movement to ACC
Description
The contents of the specified Data Memory are copied to the Accumulator. If the value is
zero, the following instruction is skipped. As this requires the insertion of a dummy instruction while the next instruction is fetched, it is a two cycle instruction. If the result is not 0 the
program proceeds with the following instruction.
Operation
ACC ¬ [m]
Skip if [m] = 0
Affected flag(s)
None
SZ [m].i
Skip if bit i of Data Memory is 0
Description
If bit i of the specified Data Memory is 0, the following instruction is skipped. As this requires the insertion of a dummy instruction while the next instruction is fetched, it is a two
cycle instruction. If the result is not 0, the program proceeds with the following instruction.
Operation
Skip if [m].i = 0
Affected flag(s)
None
TABRDC [m]
Read table (current page) to TBLH and Data Memory
Description
The low byte of the program code (current page) addressed by the table pointer (TBLP) is
moved to the specified Data Memory and the high byte moved to TBLH.
Operation
[m] ¬ program code (low byte)
TBLH ¬ program code (high byte)
Affected flag(s)
None
TABRDL [m]
Read table (last page) to TBLH and Data Memory
Description
The low byte of the program code (last page) addressed by the table pointer (TBLP) is
moved to the specified Data Memory and the high byte moved to TBLH.
Operation
[m] ¬ program code (low byte)
TBLH ¬ program code (high byte)
Affected flag(s)
None
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HT83XXX
XOR A,[m]
Logical XOR Data Memory to ACC
Description
Data in the Accumulator and the specified Data Memory perform a bitwise logical XOR operation. The result is stored in the Accumulator.
Operation
ACC ¬ ACC ²XOR² [m]
Affected flag(s)
Z
XORM A,[m]
Logical XOR ACC to Data Memory
Description
Data in the specified Data Memory and the Accumulator perform a bitwise logical XOR operation. The result is stored in the Data Memory.
Operation
[m] ¬ ACC ²XOR² [m]
Affected flag(s)
Z
XOR A,x
Logical XOR immediate data to ACC
Description
Data in the Accumulator and the specified immediate data perform a bitwise logical XOR
operation. The result is stored in the Accumulator.
Operation
ACC ¬ ACC ²XOR² x
Affected flag(s)
Z
Rev. 1.60
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HT83XXX
Package Information
20-pin SSOP (150mil) Outline Dimensions
1 1
2 0
A
B
1
1 0
C
C '
G
H
D
E
Symbol
Rev. 1.60
a
F
Dimensions in mil
Min.
Nom.
Max.
A
228
¾
244
B
150
¾
158
C
8
¾
12
C¢
335
¾
347
D
49
¾
65
E
¾
25
¾
F
4
¾
10
G
15
¾
50
H
7
¾
10
a
0°
¾
8°
34
November 19, 2008
HT83XXX
20-pin SSOP (209mil) Outline Dimensions
1 1
2 0
A
B
1
1 0
C
C '
G
H
D
E
Symbol
Rev. 1.60
a
F
Dimensions in mil
Min.
Nom.
Max.
A
291
¾
323
B
196
¾
220
C
9
¾
15
C¢
271
¾
295
D
65
¾
73
E
¾
25.59
¾
F
4
¾
10
G
26
¾
34
H
4
¾
8
a
0°
¾
8°
35
November 19, 2008
HT83XXX
28-pin SOP (300mil) Outline Dimensions
2 8
1 5
A
B
1
1 4
C
C '
G
H
D
E
a
F
· MS-013
Symbol
Rev. 1.60
Dimensions in mil
Min.
Nom.
Max.
A
393
¾
419
B
256
¾
300
C
12
¾
20
C¢
697
¾
713
D
¾
¾
104
E
¾
50
¾
F
4
¾
12
G
16
¾
50
H
8
¾
13
a
0°
¾
8°
36
November 19, 2008
HT83XXX
Product Tape and Reel Specifications
Reel Dimensions
D
T 2
A
C
B
T 1
SSOP 20S (150mil), SSOP 20N (209mil)
Symbol
Description
A
Reel Outer Diameter
Dimensions in mm
330.0±1.0
B
Reel Inner Diameter
100.0±1.5
C
Spindle Hole Diameter
13.0+0.5/-0.2
D
Key Slit Width
T1
Space Between Flange
T2
Reel Thickness
2.0±0.5
16.8+0.3/-0.2
22.2±0.2
SOP 28W (300mil)
Symbol
Description
Dimensions in mm
A
Reel Outer Diameter
330.0±1.0
B
Reel Inner Diameter
100.0±1.5
C
Spindle Hole Diameter
13.0+0.5/-0.2
D
Key Slit Width
T1
Space Between Flange
T2
Reel Thickness
Rev. 1.60
2.0±0.5
24.8+0.3/-0.2
30.2±0.2
37
November 19, 2008
HT83XXX
Carrier Tape Dimensions
P 0
D
P 1
t
E
F
W
C
D 1
P
B 0
K 0
A 0
R e e l H o le
IC p a c k a g e p in 1 a n d th e r e e l h o le s
a r e lo c a te d o n th e s a m e s id e .
SSOP 20S (150mil)
Symbol
Description
W
Carrier Tape Width
P
Cavity Pitch
E
Perforation Position
Dimensions in mm
16.0+0.3/-0.1
8.0±0.1
1.75±0.10
F
Cavity to Perforation (Width Direction)
D
Perforation Diameter
1.5+0.1/-0.0
D1
Cavity Hole Diameter
1.50+0.25/-0.00
P0
Perforation Pitch
4.0±0.1
P1
Cavity to Perforation (Length Direction)
2.0±0.1
A0
Cavity Length
6.5±0.1
B0
Cavity Width
9.0±0.1
K0
Cavity Depth
2.3±0.1
7.5±0.1
t
Carrier Tape Thickness
0.30±0.05
C
Cover Tape Width
13.3±0.1
Rev. 1.60
38
November 19, 2008
HT83XXX
SSOP 20N (209mil)
Symbol
Description
Dimensions in mm
16.0+0.3/-0.1
W
Carrier Tape Width
P
Cavity Pitch
12.0±0.1
E
Perforation Position
1.75±0.10
F
Cavity to Perforation (Width Direction)
D
Perforation Diameter
1.5+0.1/-0.0
D1
Cavity Hole Diameter
1.50+0.25/-0.00
P0
Perforation Pitch
4.0±0.1
P1
Cavity to Perforation (Length Direction)
2.0±0.1
A0
Cavity Length
7.1±0.1
B0
Cavity Width
7.2±0.1
K0
Cavity Depth
2.0±0.1
7.5±0.1
t
Carrier Tape Thickness
0.30±0.05
C
Cover Tape Width
13.3±0.1
SOP 28W (300mil)
Symbol
Description
Dimensions in mm
W
Carrier Tape Width
24.0±0.3
P
Cavity Pitch
12.0±0.1
E
Perforation Position
1.75±0.10
F
Cavity to Perforation (Width Direction)
11.5±0.1
D
Perforation Diameter
1.5+0.1/-0.0
D1
Cavity Hole Diameter
1.50+0.25/-0.00
P0
Perforation Pitch
4.0±0.1
P1
Cavity to Perforation (Length Direction)
2.0±0.1
A0
Cavity Length
10.85±0.10
B0
Cavity Width
18.34±0.10
K0
Cavity Depth
2.97±0.10
t
Carrier Tape Thickness
0.35±0.01
C
Cover Tape Width
21.3±0.1
Rev. 1.60
39
November 19, 2008
HT83XXX
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Fax: 886-3-563-1189
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Tel: 886-2-2655-7070
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http://www.holtek.com
Copyright Ó 2008 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used
solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable
without further modification, nor recommends the use of its products for application that may present a risk to human life
due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices
or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information,
please visit our web site at http://www.holtek.com.tw.
Rev. 1.60
40
November 19, 2008