ATMEL AT32UC3A464S 32-bit avrâ®microcontroller Datasheet

Features
• High Performance, Low Power 32-bit AVR® Microcontroller
•
•
•
•
•
•
•
•
•
•
•
•
– Compact Single-Cycle RISC Instruction Set Including DSP Instruction Set
– Read-Modify-Write Instructions and Atomic Bit Manipulation
– Performing up to 1.51DMIPS/MHz
• Up to 92DMIPS Running at 66MHz from Flash (1 Wait-State)
• Up to 54 DMIPS Running at 36MHz from Flash (0 Wait-State)
– Memory Protection Unit
Multi-Layer Bus System
– High-Performance Data Transfers on Separate Buses for Increased Performance
– 8 Peripheral DMA Channels (PDCA) Improves Speed for Peripheral
Communication
– 4 generic DMA Channels for High Bandwidth Data Paths
Internal High-Speed Flash
– 256KBytes, 128KBytes, 64KBytes versions
– Single-Cycle Flash Access up to 36MHz
– Prefetch Buffer Optimizing Instruction Execution at Maximum Speed
– 4 ms Page Programming Time and 8ms Full-Chip Erase Time
– 100,000 Write Cycles, 15-year Data Retention Capability
– Flash Security Locks and User Defined Configuration Area
Internal High-Speed SRAM
– 64KBytes Single-Cycle Access at Full Speed, Connected to CPU Local Bus
– 64KBytes (2x32KBytes with independent access) on the Multi-Layer Bus System
Interrupt Controller
– Autovectored Low Latency Interrupt Service with Programmable Priority
System Functions
– Power and Clock Manager Including Internal RC Clock and One 32KHz Oscillator
– Two Multipurpose Oscillators and Two Phase-Lock-Loop (PLL),
– Watchdog Timer, Real-Time Clock Timer
External Memories
– Support SDRAM, SRAM, NandFlash (1-bit and 4-bit ECC), Compact Flash
– Up to 66 MHz
External Storage device support
– MultiMediaCard (MMC V4.3), Secure-Digital (SD V2.0), SDIO V1.1
– CE-ATA V1.1, FastSD, SmartMedia, Compact Flash
– Memory Stick: Standard Format V1.40, PRO Format V1.00, Micro
– IDE Interface
One Advanced Encryption System (AES) for AT32UC3A3256S, AT32UC3A3128S,
AT32UC3A364S, AT32UC3A4256S, AT32UC3A4128S and AT32UC3A364S
– 256-, 192-, 128-bit Key Algorithm, Compliant with FIPS PUB 197 Specifications
– Buffer Encryption/Decryption Capabilities
Universal Serial Bus (USB)
– High-Speed USB (480Mbit/s) Device/MiniHost with On-The-Go (OTG)
– Flexible End-Point Configuration and Management with Dedicated DMA Channels
– On-Chip Transceivers Including Pull-Ups
One 8-channel 10-bit Analog-To-Digital Converter, multiplexed with Digital IOs.
Two Three-Channel 16-bit Timer/Counter (TC)
Four Universal Synchronous/Asynchronous Receiver/Transmitters (USART)
– Fractionnal Baudrate Generator
32-bit AVR®
Microcontroller
AT32UC3A3256S
AT32UC3A3256
AT32UC3A3128S
AT32UC3A3128
AT32UC3A364S
AT32UC3A364
AT32UC3A4256S
AT32UC3A4256
AT32UC3A4128S
AT32UC3A4128
AT32UC3A464S
AT32UC3A464
Preliminary
32072C–03/2010
AT32UC3A3/A4
•
•
•
•
•
•
•
•
– Support for SPI and LIN
– Optionnal support for IrDA, ISO7816, Hardware Handshaking, RS485 interfaces and Modem Line
Two Master/Slave Serial Peripheral Interfaces (SPI) with Chip Select Signals
One Synchronous Serial Protocol Controller
– Supports I2S and Generic Frame-Based Protocols
Two Master/Slave Two-Wire Interface (TWI), 400kbit/s I2C-compatible
16-bit Stereo Audio Bitstream
– Sample Rate Up to 50 KHz
On-Chip Debug System (JTAG interface)
– Nexus Class 2+, Runtime Control, Non-Intrusive Data and Program Trace
110 General Purpose Input/Output (GPIOs)
– Standard or High Speed mode
– Toggle capability: up to 66MHz
Packages
– 144-ball TFBGA, 11x11 mm, pitch 0.8 mm
– 144-pin LQFP, 22x22 mm, pitch 0.5 mm
– 100-ball VFBGA, 7x7 mm, pitch 0.65 mm
Single 3.3V Power Supply
2
32072C–AVR32–2010/03
AT32UC3A3/A4
1. Description
The AT32UC3A3/A4 is a complete System-On-Chip microcontroller based on the AVR32 UC
RISC processor running at frequencies up to 66MHz. AVR32 UC is a high-performance 32-bit
RISC microprocessor core, designed for cost-sensitive embedded applications, with particular
emphasis on low power consumption, high code density and high performance.
The processor implements a Memory Protection Unit (MPU) and a fast and flexible interrupt controller for supporting modern operating systems and real-time operating systems. Higher
computation capabilities are achievable using a rich set of DSP instructions.
The AT32UC3A3/A4 incorporates on-chip Flash and SRAM memories for secure and fast
access. 64 KBytes of SRAM are directly coupled to the AVR32 UC for performances optimization. Two blocks of 32 Kbytes SRAM are independently attached to the High Speed Bus Matrix,
allowing real ping-pong management.
The Peripheral Direct Memory Access Controller (PDCA) enables data transfers between
peripherals and memories without processor involvement. The PDCA drastically reduces processing overhead when transferring continuous and large data streams.
The Power Manager improves design flexibility and security: the on-chip Brown-Out Detector
monitors the power supply, the CPU runs from the on-chip RC oscillator or from one of external
oscillator sources, a Real-Time Clock and its associated timer keeps track of the time.
The device includes two sets of three identical 16-bit Timer/Counter (TC) channels. Each channel can be independently programmed to perform frequency measurement, event counting,
interval measurement, pulse generation, delay timing and pulse width modulation. 16-bit channels are combined to operate as 32-bit channels.
The AT32UC3A3/A4 also features many communication interfaces for communication intensive
applications like UART, SPI or TWI. Additionally, a flexible Synchronous Serial Controller (SSC)
is available. The SSC provides easy access to serial communication protocols and audio standards like I2S.
The AT32UC3A3/A4 includes a powerfull External Bus Interface to interface all standard memory device like SRAM, SDRAM, NAND Flash or parallel interfaces like LCD Module.
The peripheral set includes a High Speed MCI for SDIO/SD/MMC and a hardware encryption
module based on AES algorithm.
The device embeds a 10-bit ADC and a Digital Audio bistream DAC.
The Direct Memory Access controller (DMACA) allows high bandwidth data flows between high
speed peripherals (USB, External Memories, MMC, SDIO, ...) and through high speed internal
features (AES, internal memories).
The High-Speed (480MBit/s) USB 2.0 Device and Host interface supports several USB Classes
at the same time thanks to the rich Endpoint configuration. The On-The-Go (OTG) Host interface
allows device like a USB Flash disk or a USB printer to be directly connected to the processor.
This periphal has its own dedicated DMA and is perfect for Mass Storage application.
AT32UC3A3/A4 integrates a class 2+ Nexus 2.0 On-Chip Debug (OCD) System, with non-intrusive real-time trace, full-speed read/write memory access in addition to basic runtime control.
3
32072C–AVR32–2010/03
AT32UC3A3/A4
2. Blockdiagram
Blockdiagram
NEXUS
CLASS 2+
OCD
MCKO
MDO[5..0]
MSEO[1..0]
EVTI_N
EVTO_N
USB HS
INTERFACE
32KB RAM
HRAM0/1
32KB RAM
M
S
M
DMA
INSTR
INTERFACE
DATA
INTERFACE
M
M
S
S
S
HIGH SPEED
BUS MATRIX
M
S
DMA
GENERAL PURPOSE IOs
M
S
PB
M
S
S
CONFIGURATION
HSB
HSB-PB
BRIDGE B
REGISTERS BUS
HSB
PERIPHERAL
DMA
CONTROLLER
HSB-PB
BRIDGE A
NMI
EXTERNAL
INTERRUPT
CONTROLLER
PDC
EXTINT[7..0]
SCAN[7..0]
PDC
INTERRUPT
CONTROLLER
USART1
USART0
USART2
PDC
PA
PB
PC
PX
MULTIMEDIA CARD
& MEMORY STICK
INTERFACE
USART3
PDC
DATA[15..0]
DMA
CLK
SERIAL
PERIPHERAL
INTERFACE 0/1
PDC
PBA
PB
CMD[1..0]
VDDIN
VDDCORE
SYNCHRONOUS
SERIAL
CONTROLLER
115 kHz
RCSYS
XOUT0
XIN1
XOUT1
CLOCK
GENERATOR
NCS[5..0]
NRD
NWAIT
NWE0
NWE1
NWE3
RAS
CAS
SDA10
SDCK
SDCKE
SDWE
CFCE1
CFCE2
CFRW
NANDOE
NANDWE
RXD
TXD
CLK
RTS, CTS
DSR, DTR, DCD, RI
RXD
TXD
CLK
RTS, CTS
TXD
PA
PB
PC
PX
SPCK
MISO, MOSI
NPCS0
NPCS[3..1]
TX_CLOCK, TX_FRAME_SYNC
TX_DATA
RX_CLOCK, RX_FRAME_SYNC
RX_DATA
TWCK
TWO-WIRE
INTERFACE 0/1
TWD
TWALM
OSC0
OSC1
PLL0
PLL1
RESET_N
POWER
MANAGER
GCLK[3..0]
A[2..0]
B[2..0]
CLK[2..0]
CLOCK
CONTROLLER
PDC
XIN0
32 KHz
OSC
DATA[15..0]
ADDR[23..0]
CLK
ANALOG TO
DIGITAL
CONVERTER
PDC
XIN32
XOUT32
WATCHDOG
TIMER
PDC
1V8
Regulator
256/128/64
KB
FLASH
RXD
REAL TIME
COUNTER
GNDCORE
64 KB
SRAM
S
DMACA
AES
FAST GPIO
GENERAL PURPOSE IOs
ID
VBOF
MEMORY PROTECTION UNIT
LOCAL BUS
INTERFACE
EXTERNAL BUS INTERFACE
(SDRAM, STATIC MEMORY, COMPACT
FLASH & NAND FLASH)
USB_VBIAS
USB_VBUS
DMFS, DMHS
DPFS, DPHS
AVR32 UC
CPU
FLASH
CONTROLLER
JTAG
INTERFACE
MEMORY INTERFACE
TCK
TDO
TDI
TMS
PBB
Figure 2-1.
AUDIO
BITSTREAM
DAC
SLEEP
CONTROLLER
RESET
CONTROLLER
AD[7..0]
DATA[1..0]
DATAN[1..0]
TIMER/COUNTER
0/1
4
32072C–AVR32–2010/03
AT32UC3A3/A4
2.1
2.1.1
Processor and Architecture
AVR32 UC CPU
• 32-bit load/store AVR32A RISC architecture
–
–
–
–
–
15 general-purpose 32-bit registers
32-bit Stack Pointer, Program Counter and Link Register reside in register file
Fully orthogonal instruction set
Privileged and unprivileged modes enabling efficient and secure Operating Systems
Innovative instruction set together with variable instruction length ensuring industry leading
code density
– DSP extension with saturating arithmetic, and a wide variety of multiply instructions
• Three stage pipeline allows one instruction per clock cycle for most instructions
– Byte, halfword, word and double word memory access
– Multiple interrupt priority levels
• MPU allows for operating systems with memory protection
2.1.2
Debug and Test System
• IEEE1149.1 compliant JTAG and boundary scan
• Direct memory access and programming capabilities through JTAG interface
• Extensive On-Chip Debug features in compliance with IEEE-ISTO 5001-2003 (Nexus 2.0) Class 2+
•
•
•
•
2.1.3
– Low-cost NanoTrace supported
Auxiliary port for high-speed trace information
Hardware support for six Program and two data breakpoints
Unlimited number of software breakpoints supported
Advanced Program, Data, Ownership and Watchpoint trace supported
Peripheral DMA Controller
• Transfers from/to peripheral to/from any memory space without intervention of the processor
• Next Pointer Support, forbids strong real-time constraints on buffer management
• Eight channels and 24 Handshake interfaces
–
–
–
–
–
–
2.1.4
Two for each USART
Two for each Serial Synchronous Controller (SSC)
Two for each Serial Peripheral Interface (SPI)
One for ADC
Four for each TWI Interface
Two for each Audio Bit Stream DAC
Bus System
• High Speed Bus (HSB) matrix with 7 Masters and 10 Slaves handled
– Handles Requests from
• Masters: the CPU (Instruction and Data Fetch), PDCA, CPU SAB, USBB, DMACA
• Slaves: the internal Flash, internal SRAM, Peripheral Bus A, Peripheral Bus B, External
Bus Interface (EBI), Advanced Encrytion Standard (AES)
– Round-Robin Arbitration (three modes supported: no default master, last accessed default
master, fixed default master)
– Burst breaking with Slot Cycle Limit
– One address decoder provided per master
• Peripheral Bus A able to run on at divided bus speeds compared to the High Speed Bus
5
32072C–AVR32–2010/03
AT32UC3A3/A4
3. Signals Description
The following table gives details on the signal name classified by peripheral
Table 3-1.
Signal Description List
Signal Name
Function
Type
Active
Level
Comments
Power
VDDIO
I/O Power Supply
Power
3.0 to 3.6 V
VDDANA
Analog Power Supply
Power
3.0 to 3.6 V
VDDIN
Voltage Regulator Input Supply
Power
2.7 to 3.6 V
ONREG
Voltage Regulator ON/OFF
Power
Control
VDDCORE
Voltage Regulator Output for Digital Supply
Power
Output
GNDANA
Analog Ground
Ground
GNDIO
I/O Ground
Ground
GNDCORE
DIgital Ground
Ground
GNDPLL
PLL Ground
Ground
1
2.7 to 3.6 V
1.65 to 1.95V
Clocks, Oscillators, and PLL’s
XIN0, XIN1, XIN32
Crystal 0, 1, 32 Input
Analog
XOUT0, XOUT1,
XOUT32
Crystal 0, 1, 32 Output
Analog
JTAG
TCK
Test Clock
Input
TDI
Test Data In
Input
TDO
Test Data Out
TMS
Test Mode Select
Output
Input
Auxiliary Port - AUX
MCKO
Trace Data Output Clock
Output
MDO[5:0]
Trace Data Output
Output
MSEO[1:0]
Trace Frame Control
Output
EVTI_N
Event In
Output
Low
EVTO_N
Event Out
Output
Low
Power Manager - PM
6
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 3-1.
Signal Description List
Signal Name
Function
GCLK[2:0]
Generic Clock Pins
RESET_N
Reset Pin
Type
Active
Level
Comments
Output
Input
Low
DMA Controller - DMACA (optional)
DMAACK[1:0]
DMA Acknowledge
DMARQ[1:0]
DMA Requests
Output
Input
External Interrupt Module - EIM
EXTINT[7:0]
External Interrupt Pins
Input
KPS0 - KPS7
Keypad Scan Pins
NMI_N
Non-Maskable Interrupt Pin
Output
Input
Low
General Purpose Input/Output pin - GPIOA, GPIOB, GPIOC, GPIOX
PA[31:0]
Parallel I/O Controller GPIOA
I/O
PB[11:0]
Parallel I/O Controller GPIOB
I/O
PC[5:0]
Parallel I/O Controller GPIOC
I/O
PX[59:0]
Parallel I/O Controller GPIO X
I/O
External Bus Interface - EBI
ADDR[23:0]
Address Bus
Output
CAS
Column Signal
Output
Low
CFCE1
Compact Flash 1 Chip Enable
Output
Low
CFCE2
Compact Flash 2 Chip Enable
Output
Low
CFRNW
Compact Flash Read Not Write
Output
DATA[15:0]
Data Bus
NANDOE
NAND Flash Output Enable
Output
Low
NANDWE
NAND Flash Write Enable
Output
Low
NCS[5:0]
Chip Select
Output
Low
NRD
Read Signal
Output
Low
NWAIT
External Wait Signal
Input
Low
NWE0
Write Enable 0
Output
Low
NWE1
Write Enable 1
Output
Low
I/O
7
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 3-1.
Signal Description List
Type
Active
Level
Row Signal
Output
Low
SDA10
SDRAM Address 10 Line
Output
SDCK
SDRAM Clock
Output
SDCKE
SDRAM Clock Enable
Output
SDCS
SDRAM Chip Select
Output
Low
SDWE
SDRAM Write Enable
Output
Low
Signal Name
Function
RAS
Comments
MultiMedia Card Interface - MCI
CLK
Multimedia Card Clock
Output
CMD[1:0]
Multimedia Card Command
I/O
DATA[15:0]
Multimedia Card Data
I/O
Serial Peripheral Interface - SPI0
MISO
Master In Slave Out
I/O
MOSI
Master Out Slave In
I/O
NPCS[3:0]
SPI Peripheral Chip Select
I/O
SCK
Clock
Low
Output
Synchronous Serial Controller - SSC
RX_CLOCK
SSC Receive Clock
I/O
RX_DATA
SSC Receive Data
Input
RX_FRAME_SYNC
SSC Receive Frame Sync
I/O
TX_CLOCK
SSC Transmit Clock
I/O
TX_DATA
SSC Transmit Data
Output
TX_FRAME_SYNC
SSC Transmit Frame Sync
I/O
Timer/Counter - TC0, TC1
A0
Channel 0 Line A
I/O
A1
Channel 1 Line A
I/O
A2
Channel 2 Line A
I/O
B0
Channel 0 Line B
I/O
B1
Channel 1 Line B
I/O
8
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 3-1.
Signal Description List
Signal Name
Function
Type
B2
Channel 2 Line B
CLK0
Channel 0 External Clock Input
Input
CLK1
Channel 1 External Clock Input
Input
CLK2
Channel 2 External Clock Input
Input
Active
Level
Comments
I/O
Two-wire Interface - TWI0, TWI1
SCL
Serial Clock
I/O
SDA
Serial Data
I/O
Universal Synchronous Asynchronous Receiver Transmitter - USART0, USART1, USART2, USART3
CLK
Clock
I/O
CTS
Clear To Send
DCD
Data Carrier Detect
Only USART1
DSR
Data Set Ready
Only USART1
DTR
Data Terminal Ready
Only USART1
RI
Ring Indicator
Only USART1
RTS
Request To Send
RXD
Receive Data
Input
RXDN
Inverted Receive Data
Input
TXD
Transmit Data
Output
TXDN
Inverted Transmit Data
Output
Input
Output
Low
Low
Analog to Digital Converter - ADC
AD0 - AD7
Analog input pins
Analog
input
Audio Bitstream DAC (ABDAC)
DATA0-DATA1
D/A Data out
Output
DATAN0-DATAN1
D/A Data inverted out
Output
Universal Serial Bus Device - USB
FSDM
USB Full Speed Data -
Analog
FSDP
USB Full Speed Data +
Analog
HSDM
USB High Speed Data -
Analog
9
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 3-1.
Signal Description List
Signal Name
Function
Type
HSDP
USB High Speed Data +
Analog
USB_VBIAS
USB VBIAS reference
Analog
USB_VBUS
USB VBUS for OTG feature
Output
Active
Level
Comments
Connect to the ground through a
6810ohms (+/- 0.5%) resistor
10
32072C–AVR32–2010/03
AT32UC3A3/A4
4. Package and Pinout
4.1
Package
The device pins are multiplexed with peripheral functions as described in the Peripheral Multiplexing on I/O Line section.
Figure 4-1.
TFBGA144 Pinout (top view)
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
G
H
J
K
L
M
Table 4-1.
TFBGA144 Package Pinout
1
2
3
4
5
6
7
8
9
10
11
12
A
PX40
PB00
PA28
PA27
PB03
PA29
PC02
PC04
PC05
DPHS
DMHS
USB_VBUS
B
PX10
PB11
PA31
PB02
VDDIO
PB04
PC03
VDDIO
USB_VBIAS
DMFS
GNDPLL
PA09
C
PX09
PX35
GNDIO
PB01
PX16
PX13
PA30
PB08
DPFS
GNDCORE
PA08
PA10
D
PX08
PX37
PX36
PX47
PX19
PX12
PB10
PA02
PA26
PA11
PB07
PB06
E
PX38
VDDIO
PX54
PX53
VDDIO
PX15
PB09
VDDIN
PA25
PA07
VDDCORE
PA12
F
PX39
PX07
PX06
PX49
PX48
GNDIO
GNDIO
PA06
PA04
PA05
PA13
PA16
G
PX00
PX05
PX59
PX50
PX51
GNDIO
GNDIO
PA23
PA24
PA03
PA00
PA01
H
PX01
VDDIO
PX58
PX57
VDDIO
PC01
PA17
VDDIO
PA21
PA22
VDDANA
PB05
J
PX04
PX02
PX34
PX56
PX55
PA14
PA15
PA19
PA20
TMS
TDO
RESET_N
K
PX03
PX44
GNDIO
PX46
PC00
PX17
PX52
PA18
PX27
GNDIO
PX29
TCK
L
PX11
GNDIO
PX45
PX20
VDDIO
PX18
PX43
VDDIN
PX26
PX28
GNDANA
TDI
M
PX22
PX41
PX42
PX14
PX21
PX23
PX24
PX25
PX32
PX31
PX30
PX33
11
32072C–AVR32–2010/03
AT32UC3A3/A4
Figure 4-2.
LQFP144 Pinout
108
73
109
72
144
37
1
Table 4-2.
36
LQFP144 Package Pinout
1
USB_VBUS
25
PB02
49
PX09
73
PX20
97
PX31
121
PB05
2
VDDIO
26
PA27
50
PX08
74
PX46
98
PC00
122
PA00
3
USB_VBIAS
27
PB01
51
PX38
75
PX50
99
PC01
123
PA01
4
GNDIO
28
PA28
52
PX39
76
PX57
100
PA14
124
PA05
5
DMHS
29
PA31
53
PX06
77
PX51
101
PA15
125
PA03
6
DPHS
30
PB00
54
PX07
78
PX56
102
GNDIO
126
PA04
7
GNDIO
31
PB11
55
PX00
79
PX55
103
VDDIO
127
PA06
8
DMFS
32
PX16
56
PX59
80
PX21
104
TMS
128
PA16
9
DPFS
33
PX13
57
PX58
81
VDDIO
105
TDO
129
PA13
10
VDDIO
34
PX12
58
PX05
82
GNDIO
106
RESET_N
130
VDDIO
11
PB08
35
PX19
59
PX01
83
PX17
107
TCK
131
GNDIO
12
PC05
36
PX40
60
PX04
84
PX18
108
TDI
132
PA12
13
PC04
37
PX10
61
PX34
85
PX23
109
PA21
133
PA07
14
PA30
38
PX35
62
PX02
86
PX24
110
PA22
134
PB06
15
PA02
39
PX47
63
PX03
87
PX52
111
PA23
135
PB07
16
PB10
40
PX15
64
VDDIO
88
PX43
112
PA24
136
PA11
17
PB09
41
PX48
65
GNDIO
89
PX27
113
PA20
137
PA08
18
PC02
42
PX53
66
PX44
90
PX26
114
PA19
138
PA10
19
PC03
43
PX49
67
PX11
91
PX28
115
PA18
139
PA09
20
GNDIO
44
PX36
68
PX14
92
PX25
116
PA17
140
GNDCORE
21
VDDIO
45
PX37
69
PX42
93
PX32
117
GNDANA
141
VDDCORE
22
PB04
46
PX54
70
PX45
94
PX29
118
VDDANA
142
VDDIN
23
PA29
47
GNDIO
71
PX41
95
PX33
119
PA25
143
VDDIN
24
PB03
48
VDDIO
72
PX22
96
PX30
120
PA26
144
GNDPLL
12
32072C–AVR32–2010/03
AT32UC3A3/A4
Figure 4-3.
VFBGA100 Pinout (top view)
1
2
3
4
5
6
7
8
9
10
A
B
C
D
E
F
G
H
J
K
Table 4-3.
VFBGA100 Package Pinout
1
2
3
4
5
6
7
8
9
10
A
PA28
PA27
PB04
PA30
PC02
PC03
PC05
DPHS
DMHS
USB_VBUS
B
PB00
PB01
PB02
PA29
VDDIO
VDDIO
PC04
DPFS
DMFS
GNDPLL
C
PB11
PA31
GNDIO
PB03
PB09
PB08
USB_VBIAS
GNDIO
PA11
PA10
PB10
PB07
PB06
PA09
VDDIN
VDDIN
PA04
VDDCORE
D
PX12
PX10
PX13
PX16/PX53
(1)
E
PA02/PX47
(1)
GNDIO
PX08
PX09
VDDIO
GNDIO
PA16
PA06/PA13
F
PX19/PX59(1)
VDDIO
PX06
PX07
GNDIO
VDDIO
PA26/PB05(1)
PA08
PA03
GNDCORE
G
PX05
PX01
PX02
PX00
PX30
PA23/PX46(1)
PA12/PA25(1)
PA00/PA18(1)
PA05
PA01/PA17(1)
H
PX04
PX21
GNDIO
PX25
PX31
PA22/PX20(1)
TMS
GNDANA
PA20/PX18(1)
PA07/PA19(1)
J
PX03
PX24
PX26
PX29
VDDIO
VDDANA
PA15/PX45(1)
TDO
RESET_N
PA24/PX17(1)
K
PX23
PX27
PX28
PX15/PX32(1)
PC00/PX14(1)
PC01
PA14/PX11(1)
TDI
TCK
PA21/PX22(1)
Note:
(1)
1. Those balls are physically connected to 2 GPIOs. Software must managed carrefully the GPIO
configuration to avoid electrical conflict
13
32072C–AVR32–2010/03
AT32UC3A3/A4
4.2
Peripheral Multiplexing on I/O lines
Each GPIO line can be assigned to one of 4 peripheral functions; A, B, C, or D. The following
table defines how the I/O lines on the peripherals A, B, C, or D are multiplexed by the GPIO.
Table 4-4.
GPIO Controller Function Multiplexing
TFBGA
QFP
VFBGA
144
144
100
G11
G12
122
123
(1)
G8
G10
(1)
GPIO Pin
Function A
Function B
Function C
PA00
GPIO 0
USART0 - RTS
TC0 - CLK1
SPI1 - NPCS[3]
PA01
GPIO 1
USART0 - CTS
TC0 - A1
USART2 - RTS
PA02
GPIO 2
USART0 - CLK
TC0 - B1
SPI0 - NPCS[0]
D8
15
G10
125
F9
PA03
GPIO 3
USART0 - RXD
EIC - EXTINT[4]
ABDAC - DATA[0]
F9
126
E9
PA04
GPIO 4
USART0 - TXD
EIC - EXTINT[5]
ABDAC - DATAN[0]
F10
124
G9
PA05
GPIO 5
USART1 - RXD
TC1 - CLK0
USB - ID
PA06
GPIO 6
USART1 - TXD
TC1 - CLK1
USB - VBOF
PA07
GPIO 7
SPI0 - NPCS[3]
ABDAC - DATAN[0]
USART1 - CLK
F8
127
E1
(1)
Pin
E8
(1)
(1)
E10
133
H10
C11
137
F8
PA08
GPIO 8
SPI0 - SPCK
ABDAC - DATA[0]
TC1 - B1
B12
139
D8
PA09
GPIO 9
SPI0 - NPCS[0]
EIC - EXTINT[6]
TC1 - A1
C12
138
C10
PA10
GPIO 10
SPI0 - MOSI
USB - VBOF
TC1 - B0
D10
136
C9
E12
F11
J6
132
129
100
J7
101
F12
128
H7
K8
J8
J9
H9
H10
G8
G9
E9
116
115
114
113
109
110
111
112
119
PA11
GPIO 11
SPI0 - MISO
USB - ID
TC1 - A2
(1)
PA12
GPIO 12
USART1 - CTS
SPI0 - NPCS[2]
TC1 - A0
(1)
PA13
GPIO 13
USART1 - RTS
SPI0 - NPCS[1]
EIC - EXTINT[7]
(1)
PA14
GPIO 14
SPI0 - NPCS[1]
TWIMS0 - TWALM
TWIMS1 - TWCK
(1)
PA15
GPIO 15
MCI - CMD[1]
SPI1 - SPCK
TWIMS1 - TWD
PA16
GPIO 16
MCI - DATA[11]
SPI1 - MOSI
TC1 - CLK2
PA17
GPIO 17
MCI - DATA[10]
SPI1 - NPCS[1]
ADC - AD[7]
PA18
GPIO 18
MCI - DATA[9]
SPI1 - NPCS[2]
ADC - AD[6]
PA19
GPIO 19
MCI - DATA[8]
SPI1 - MISO
ADC - AD[5]
PA20
GPIO 20
EIC - NMI
SSC - RX_FRAME_SYNC
ADC - AD[4]
G7
E8
K7
J7
E7
G10
(1)
(1)
G8
H10
H9
(1)
K10
H6
(1)
(1)
PA21
GPIO 21
ADC - AD[0]
EIC - EXTINT[0]
USB - ID
(1)
PA22
GPIO 22
ADC - AD[1]
EIC - EXTINT[1]
USB - VBOF
(1)
PA23
GPIO 23
ADC - AD[2]
EIC - EXTINT[2]
ABDAC - DATA[1]
(1)
PA24
GPIO 24
ADC - AD[3]
EIC - EXTINT[3]
ABDAC - DATAN[1]
(1)
PA25
GPIO 25
TWIMS0 - TWD
TWIMS1 - TWALM
USART1 - DCD
G6
J10
G7
(1)
Function D
D9
120
F7 )
PA26
GPIO 26
TWIMS0 - TWCK
USART2 - CTS
USART1 - DSR
A4
26
A2
PA27
GPIO 27
MCI - CLK
SSC - RX_DATA
USART3 - RTS
MSI - SCLK
A3
28
A1
PA28
GPIO 28
MCI - CMD[0]
SSC - RX_CLOCK
USART3 - CTS
MSI - BS
A6
23
B4
PA29
GPIO 29
MCI - DATA[0]
USART3 - TXD
TC0 - CLK0
MSI - DATA[0]
C7
14
A4
PA30
GPIO 30
MCI - DATA[1]
USART3 - CLK
DMACA - DMAACK[0]
MSI - DATA[1]
B3
29
C2
PA31
GPIO 31
MCI - DATA[2]
USART2 - RXD
DMACA - DMARQ[0]
MSI - DATA[2]
A2
30
B1
PB00
GPIO 32
MCI - DATA[3]
USART2 - TXD
ADC - TRIGGER
MSI - DATA[3]
C4
27
B2
PB01
GPIO 33
MCI - DATA[4]
ABDAC - DATA[1]
EIC - SCAN[0]
MSI - INS
14
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 4-4.
GPIO Controller Function Multiplexing
B4
25
B3
PB02
GPIO 34
MCI - DATA[5]
ABDAC - DATAN[1]
EIC - SCAN[1]
A5
24
C4
PB03
GPIO 35
MCI - DATA[6]
USART2 - CLK
EIC - SCAN[2]
B6
22
A3
PB04
GPIO 36
MCI - DATA[7]
USART3 - RXD
EIC - SCAN[3]
H12
121
F7(1)
PB05
GPIO 37
USB - ID
TC0 - A0
EIC - SCAN[4]
D12
134
D7
PB06
GPIO 38
USB - VBOF
TC0 - B0
EIC - SCAN[5]
D11
135
D6
PB07
GPIO 39
SPI1 - SPCK
SSC - TX_CLOCK
EIC - SCAN[6]
C8
11
C6
PB08
GPIO 40
SPI1 - MISO
SSC - TX_DATA
EIC - SCAN[7]
E7
17
C5
PB09
GPIO 41
SPI1 - NPCS[0]
SSC - RX_DATA
EBI - NCS[4]
D7
16
D5
PB10
GPIO 42
SPI1 - MOSI
SSC - RX_FRAME_SYNC
EBI - NCS[5]
B2
31
C1
PB11
GPIO 43
USART1 - RXD
SSC - TX_FRAME_SYNC
PM - GCLK[1]
K5
98
K5(1)
PC00
GPIO 45
H6
99
K6
PC01
GPIO 46
A7
18
A5
PC02
GPIO 47
B7
19
A6
PC03
GPIO 48
A8
13
B7
PC04
GPIO 49
A9
12
A7
PC05
GPIO 50
G1
55
G4
PX00
GPIO 51
EBI - DATA[10]
USART0 - RXD
USART1 - RI
H1
59
G2
PX01
GPIO 52
EBI - DATA[9]
USART0 - TXD
USART1 - DTR
J2
62
G3
PX02
GPIO 53
EBI - DATA[8]
USART0 - CTS
PM - GCLK[0]
K1
63
J1
PX03
GPIO 54
EBI - DATA[7]
USART0 - RTS
J1
60
H1
PX04
GPIO 55
EBI - DATA[6]
USART1 - RXD
G2
58
G1
PX05
GPIO 56
EBI - DATA[5]
USART1 - TXD
F3
53
F3
PX06
GPIO 57
EBI - DATA[4]
USART1 - CTS
F2
54
F4
PX07
GPIO 58
EBI - DATA[3]
USART1 - RTS
D1
50
E3
PX08
GPIO 59
EBI - DATA[2]
USART3 - RXD
C1
49
E4
PX09
GPIO 60
EBI - DATA[1]
USART3 - TXD
B1
37
D2
PX10
GPIO 61
EBI - DATA[0]
USART2 - RXD
L1
67
K7(1)
PX11
GPIO 62
EBI - NWE1
USART2 - TXD
D6
34
D1
PX12
GPIO 63
EBI - NWE0
USART2 - CTS
MCI - CLK
C6
33
D3
PX13
GPIO 64
EBI - NRD
USART2 - RTS
MCI - CLK
M4
68
K5(1)
PX14
GPIO 65
EBI - NCS[1]
E6
40
K4(1)
PX15
GPIO 66
EBI - ADDR[19]
USART3 - RTS
TC0 - B0
C5
32
D4(1)
PX16
GPIO 67
EBI - ADDR[18]
USART3 - CTS
TC0 - A1
K6
83
J10(1)
PX17
GPIO 68
EBI - ADDR[17]
DMACA - DMARQ[1]
TC0 - B1
L6
84
H9(1)
PX18
GPIO 69
EBI - ADDR[16]
DMACA - DMAACK[1]
TC0 - A2
D5
35
F1(1)
PX19
GPIO 70
EBI - ADDR[15]
EIC - SCAN[0]
TC0 - B2
L4
73
H6(1)
PX20
GPIO 71
EBI - ADDR[14]
EIC - SCAN[1]
TC0 - CLK0
M5
80
H2
PX21
GPIO 72
EBI - ADDR[13]
EIC - SCAN[2]
TC0 - CLK1
M1
72
K10(1)
PX22
GPIO 73
EBI - ADDR[12]
EIC - SCAN[3]
TC0 - CLK2
TC0 - A0
15
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 4-4.
GPIO Controller Function Multiplexing
M6
85
K1
PX23
GPIO 74
EBI - ADDR[11]
EIC - SCAN[4]
SSC - TX_CLOCK
M7
86
J2
PX24
GPIO 75
EBI - ADDR[10]
EIC - SCAN[5]
SSC - TX_DATA
M8
92
H4
PX25
GPIO 76
EBI - ADDR[9]
EIC - SCAN[6]
SSC - RX_DATA
L9
90
J3
PX26
GPIO 77
EBI - ADDR[8]
EIC - SCAN[7]
SSC - RX_FRAME_SYNC
K9
89
K2
PX27
GPIO 78
EBI - ADDR[7]
SPI0 - MISO
SSC - TX_FRAME_SYNC
L10
91
K3
PX28
GPIO 79
EBI - ADDR[6]
SPI0 - MOSI
SSC - RX_CLOCK
K11
94
J4
PX29
GPIO 80
EBI - ADDR[5]
SPI0 - SPCK
M11
96
G5
PX30
GPIO 81
EBI - ADDR[4]
SPI0 - NPCS[0]
M10
97
H5
PX31
GPIO 82
EBI - ADDR[3]
SPI0 - NPCS[1]
M9
93
K4(1)
PX32
GPIO 83
EBI - ADDR[2]
SPI0 - NPCS[2]
M12
95
PX33
GPIO 84
EBI - ADDR[1]
SPI0 - NPCS[3]
J3
61
PX34
GPIO 85
EBI - ADDR[0]
SPI1 - MISO
PM - GCLK[0]
C2
38
PX35
GPIO 86
EBI - DATA[15]
SPI1 - MOSI
PM - GCLK[1]
D3
44
PX36
GPIO 87
EBI - DATA[14]
SPI1 - SPCK
PM - GCLK[2]
D2
45
PX37
GPIO 88
EBI - DATA[13]
SPI1 - NPCS[0]
PM - GCLK[3]
E1
51
PX38
GPIO 89
EBI - DATA[12]
SPI1 - NPCS[1]
USART1 - DCD
F1
52
PX39
GPIO 90
EBI - DATA[11]
SPI1 - NPCS[2]
USART1 - DSR
A1
36
PX40
GPIO 91
M2
71
PX41
GPIO 92
EBI - CAS
M3
69
PX42
GPIO 93
EBI - RAS
L7
88
PX43
GPIO 94
EBI - SDA10
USART1 - RI
K2
66
PX44
GPIO 95
EBI - SDWE
USART1 - DTR
L3
70
J7(1)
PX45
GPIO 96
EBI - SDCK
K4
74
G6(1)
PX46
GPIO 97
EBI - SDCKE
D4
39
E1(1)
PX47
GPIO 98
EBI - NANDOE
ADC - TRIGGER
MCI - DATA[11]
F5
41
PX48
GPIO 99
EBI - ADDR[23]
USB - VBOF
MCI - DATA[10]
F4
43
PX49
GPIO 100
EBI - CFRNW
USB - ID
MCI - DATA[9]
G4
75
PX50
GPIO 101
EBI - CFCE2
TC1 - B2
MCI - DATA[8]
G5
77
PX51
GPIO 102
EBI - CFCE1
DMACA - DMAACK[0]
MCI - DATA[15]
K7
87
PX52
GPIO 103
EBI - NCS[3]
DMACA - DMARQ[0]
MCI - DATA[14]
E4
42
PX53
GPIO 104
EBI - NCS[2]
E3
46
PX54
GPIO 105
EBI - NWAIT
USART3 - TXD
MCI - DATA[12]
J5
79
PX55
GPIO 106
EBI - ADDR[22]
EIC - SCAN[3]
USART2 - RXD
J4
78
PX56
GPIO 107
EBI - ADDR[21]
EIC - SCAN[2]
USART2 - TXD
H4
76
PX57
GPIO 108
EBI - ADDR[20]
EIC - SCAN[1]
USART3 - RXD
H3
57
PX58
GPIO 109
EBI - NCS[0]
EIC - SCAN[0]
USART3 - TXD
G3
56
PX59
GPIO 110
EBI - NANDWE
D4(1)
F1(1)
Note:
MCI - CLK
MCI - DATA[13]
MCI - CMD[1]
1. Those balls are physically connected to 2 GPIOs. Software must managed carrefully the GPIO
configuration to avoid electrical conflict
16
32072C–AVR32–2010/03
AT32UC3A3/A4
4.2.1
Oscillator Pinout
Table 4-5.
Oscillator Pinout
TFBGA144
QFP144
VFBGA100
Pin name
Oscillator pin
A7
18
A5
PC02
XIN0
B7
19
A6
PC03
XOUT0
A8
13
B7
PC04
XIN1
A9
12
A7
PC05
XIN1
PC00
XIN32
PC01
XOUT32
K5
98
H6
99
Note:
4.2.2
K5
K6
1. This ball is physically connected to 2 GPIOs. Software must managed carrefully the GPIO configuration to avoid electrical conflict
JTAG port connections
Table 4-6.
4.2.3
(1)
JTAG Pinout
TFBGA144
QFP144
VFBGA100
Pin name
JTAG pin
K12
107
K9
TCK
TCK
L12
108
K8
TDI
TDI
J11
105
J8
TDO
TDO
J10
104
H7
TMS
TMS
Nexus OCD AUX port connections
If the OCD trace system is enabled, the trace system will take control over a number of pins, irrespective of the GPIO configuration. Three differents OCD trace pin mappings are possible,
depending on the configuration of the OCD AXS register. For details, see the AVR32 UC Technical Reference Manual.
Table 4-7.
Nexus OCD AUX port connections
Pin
AXS=0
AXS=1
AXS=2
EVTI_N
PB05
PA08
PX00
MDO[5]
PA00
PX56
PX06
MDO[4]
PA01
PX57
PX05
MDO[3]
PA03
PX58
PX04
MDO[2]
PA16
PA24
PX03
MDO[1]
PA13
PA23
PX02
MDO[0]
PA12
PA22
PX01
MSEO[1]
PA10
PA07
PX08
MSEO[0]
PA11
PX55
PX07
MCKO
PB07
PX00
PB09
EVTO_N
PB06
PB06
PB06
17
32072C–AVR32–2010/03
AT32UC3A3/A4
4.3
Signal Descriptions
The following table gives details on signal name classified by peripheral.
Table 4-8.
Signal Description List
Signal Name
Function
Type
Active
Level
Comments
Power
VDDIO
I/O Power Supply
Power
3.0 to 3.6V
VDDANA
Analog Power Supply
Power
3.0 to 3.6V
VDDIN
Voltage Regulator Input Supply
Power
3.0 to 3.6V
VDDCORE
Voltage Regulator Output for Digital Supply
Power
Output
1.65 to 1.95 V
GNDANA
Analog Ground
Ground
GNDIO
I/O Ground
Ground
GNDCORE
Digital Ground
Ground
GNDPLL
PLL Ground
Ground
Clocks, Oscillators, and PLL’s
XIN0, XIN1, XIN32
Crystal 0, 1, 32 Input
Analog
XOUT0, XOUT1,
XOUT32
Crystal 0, 1, 32 Output
Analog
JTAG
TCK
Test Clock
Input
TDI
Test Data In
Input
TDO
Test Data Out
TMS
Test Mode Select
Output
Input
Auxiliary Port - AUX
MCKO
Trace Data Output Clock
Output
MDO[5:0]
Trace Data Output
Output
MSEO[1:0]
Trace Frame Control
Output
EVTI_N
Event In
Output
Low
EVTO_N
Event Out
Output
Low
Power Manager - PM
GCLK[3:0]
Generic Clock Pins
Output
18
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 4-8.
Signal Description List
Signal Name
Function
Type
Active
Level
RESET_N
Reset Pin
Input
Low
Comments
DMA Controller - DMACA (optional)
DMAACK[1:0]
DMA Acknowledge
DMARQ[1:0]
DMA Requests
Output
Input
External Interrupt Controller - EIC
EXTINT[7:0]
External Interrupt Pins
Input
SCAN[7:0]
Keypad Scan Pins
NMI
Non-Maskable Interrupt Pin
Output
Input
Low
General Purpose Input/Output pin - GPIOA, GPIOB, GPIOC, GPIOX
PA[31:0]
Parallel I/O Controller GPIO port A
I/O
PB[11:0]
Parallel I/O Controller GPIO port B
I/O
PC[5:0]
Parallel I/O Controller GPIO port C
I/O
PX[59:0]
Parallel I/O Controller GPIO port X
I/O
External Bus Interface - EBI
ADDR[23:0]
Address Bus
Output
CAS
Column Signal
Output
Low
CFCE1
Compact Flash 1 Chip Enable
Output
Low
CFCE2
Compact Flash 2 Chip Enable
Output
Low
CFRNW
Compact Flash Read Not Write
Output
DATA[15:0]
Data Bus
NANDOE
NAND Flash Output Enable
Output
Low
NANDWE
NAND Flash Write Enable
Output
Low
NCS[5:0]
Chip Select
Output
Low
NRD
Read Signal
Output
Low
NWAIT
External Wait Signal
Input
Low
NWE0
Write Enable 0
Output
Low
NWE1
Write Enable 1
Output
Low
RAS
Row Signal
Output
Low
I/O
19
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 4-8.
Signal Description List
Signal Name
Function
Type
SDA10
SDRAM Address 10 Line
Output
SDCK
SDRAM Clock
Output
SDCKE
SDRAM Clock Enable
Output
SDWE
SDRAM Write Enable
Output
Active
Level
Comments
Low
MultiMedia Card Interface - MCI
CLK
Multimedia Card Clock
Output
CMD[1:0]
Multimedia Card Command
I/O
DATA[15:0]
Multimedia Card Data
I/O
Memory Stick Interface - MSI
SCLK
Memory Stick Clock
Output
BS
Memory Stick Command
I/O
DATA[3:0]
Multimedia Card Data
I/O
Serial Peripheral Interface - SPI0, SPI1
MISO
Master In Slave Out
I/O
MOSI
Master Out Slave In
I/O
NPCS[3:0]
SPI Peripheral Chip Select
I/O
SPCK
Clock
Low
Output
Synchronous Serial Controller - SSC
RX_CLOCK
SSC Receive Clock
I/O
RX_DATA
SSC Receive Data
Input
RX_FRAME_SYNC
SSC Receive Frame Sync
I/O
TX_CLOCK
SSC Transmit Clock
I/O
TX_DATA
SSC Transmit Data
Output
TX_FRAME_SYNC
SSC Transmit Frame Sync
I/O
Timer/Counter - TC0, TC1
A0
Channel 0 Line A
I/O
A1
Channel 1 Line A
I/O
A2
Channel 2 Line A
I/O
20
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 4-8.
Signal Description List
Signal Name
Function
Type
B0
Channel 0 Line B
I/O
B1
Channel 1 Line B
I/O
B2
Channel 2 Line B
I/O
CLK0
Channel 0 External Clock Input
Input
CLK1
Channel 1 External Clock Input
Input
CLK2
Channel 2 External Clock Input
Input
Active
Level
Comments
Two-wire Interface - TWI0, TWI1
TWCK
Serial Clock
I/O
TWD
Serial Data
I/O
TWALM
SMBALERT signal
I/O
Universal Synchronous Asynchronous Receiver Transmitter - USART0, USART1, USART2, USART3
CLK
Clock
I/O
CTS
Clear To Send
DCD
Data Carrier Detect
Only USART1
DSR
Data Set Ready
Only USART1
DTR
Data Terminal Ready
Only USART1
RI
Ring Indicator
Only USART1
RTS
Request To Send
RXD
Receive Data
Input
TXD
Transmit Data
Output
Input
Output
Analog to Digital Converter - ADC
AD0 - AD7
Analog input pins
Analog
input
Audio Bitstream DAC (ABDAC)
DATA0-DATA1
D/A Data out
Output
DATAN0-DATAN1
D/A Data inverted out
Output
Universal Serial Bus Device - USB
DMFS
USB Full Speed Data -
Analog
DPFS
USB Full Speed Data +
Analog
21
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 4-8.
Signal Description List
Signal Name
Function
Type
DMHS
USB High Speed Data -
Analog
DPHS
USB High Speed Data +
Analog
USB_VBIAS
USB VBIAS reference
Analog
USB_VBUS
USB VBUS for OTG feature
Output
VBOF
USB VBUS on/off bus power control port
Output
ID
ID Pin fo the USB bus
Active
Level
Comments
Connect to the ground through a
6810 ohms (+/- 1%) resistor in
parallel with a 10pf capacitor.
If USB hi-speed feature is not
required, leave this pin
unconnected to save power
Input
22
32072C–AVR32–2010/03
AT32UC3A3/A4
4.4
4.4.1
I/O Line Considerations
JTAG Pins
TMS and TDI pins have pull-up resistors. TDO pin is an output, driven at up to VDDIO, and has
no pull-up resistor.
4.4.2
RESET_N Pin
The RESET_N pin is a schmitt input and integrates a permanent pull-up resistor to VDDIO. As
the product integrates a power-on reset cell, the RESET_N pin can be left unconnected in case
no reset from the system needs to be applied to the product.
4.4.3
TWI Pins
When these pins are used for TWI, the pins are open-drain outputs with slew-rate limitation and
inputs with inputs with spike filtering. When used as GPIO pins or used for other peripherals, the
pins have the same characteristics as other GPIO pins.
4.4.4
GPIO Pins
All the I/O lines integrate a programmable pull-up resistor. Programming of this pull-up resistor is
performed independently for each I/O line through the I/O Controller. After reset, I/O lines default
as inputs with pull-up resistors disabled, except when indicated otherwise in the column “Reset
State” of the I/O Controller multiplexing tables.
23
32072C–AVR32–2010/03
AT32UC3A3/A4
4.5
4.5.1
Power Considerations
Power Supplies
The AT32UC3A3 has several types of power supply pins:
•
•
•
•
VDDIO: Powers I/O lines. Voltage is 3.3V nominal
VDDANA: Powers the ADC. Voltage is 3.3V nominal
VDDIN: Input voltage for the voltage regulator. Voltage is 3.3V nominal
VDDCORE: Output voltage from regulator for filtering purpose and provides the supply to the
core, memories, and peripherals. Voltage is 1.8V nominal
The ground pin GNDCORE is common to VDDCORE and VDDIN. The ground pin for VDDANA
is GNDANA. The ground pins for VDDIO are GNDIO.
Refer to Electrical Characteristics chapter for power consumption on the various supply pins.
4.5.2
Voltage Regulator
The AT32UC3A3 embeds a voltage regulator that converts from 3.3V to 1.8V with a load of up
to 100 mA. The regulator takes its input voltage from VDDIN, and supplies the output voltage on
VDDCORE and powers the core, memories and peripherals.
Adequate output supply decoupling is mandatory for VDDCORE to reduce ripple and avoid
oscillations.
The best way to achieve this is to use two capacitors in parallel between VDDCORE and
GNDCORE:
• One external 470pF (or 1nF) NPO capacitor (COUT1) should be connected as close to the
chip as possible.
• One external 2.2µF (or 3.3µF) X7R capacitor (COUT2).
Adequate input supply decoupling is mandatory for VDDIN in order to improve startup stability
and reduce source voltage drop.
The input decoupling capacitor should be placed close to the chip, e.g., two capacitors can be
used in parallel (1nF NPO and 4.7µF X7R).
3.3V
VDDIN
CIN2
CIN1
1.8V
1.8V
Regulator
VDDCORE
COUT2
COUT1
24
32072C–AVR32–2010/03
AT32UC3A3/A4
5. Power Considerations
5.1
Power Supplies
The AT32UC3A3/A4 has several types of power supply pins:
•
•
•
•
VDDIO: Powers I/O lines. Voltage is 3.3V nominal
VDDANA: Powers the ADC Voltage and provides the ADVREF voltage is 3.3V nominal
VDDIN: Input voltage for the voltage regulator. Voltage is 3.3V nominal
VDDCORE: Output voltage from regulator for filtering purpose and provides the supply to the
core, memories, and peripherals. Voltage is 1.8V nominal
The ground pins GNDCORE are common to VDDCORE and VDDIN. The ground pin for
VDDANA is GNDANA. The ground pin for VDDIO is GNDIO
Refer to Electrical Characteristics chapter for power consumption on the various supply pins.
5.2
Voltage Regulator
The AT32UC3A3 embeds a voltage regulator that converts from 3.3V to 1.8V with a load of up
to 100 mA. The regulator takes its input voltage from VDDIN, and supplies the output voltage on
VDDCORE and powers the core, memories and peripherals.
Adequate output supply decoupling is mandatory for VDDCORE to reduce ripple and avoid
oscillations.
The best way to achieve this is to use two capacitors in parallel between VDDCORE and
GNDCORE:
• One external 470pF (or 1nF) NPO capacitor (COUT1) should be connected as close to the
chip as possible.
• One external 2.2µF (or 3.3µF) X7R capacitor (COUT2).
Adequate input supply decoupling is mandatory for VDDIN in order to improve startup stability
and reduce source voltage drop.
The input decoupling capacitor should be placed close to the chip, e.g., two capacitors can be
used in parallel (100nF NPO and 4.7µF X7R).
3.3V
VDDIN
CIN2
1.8
V
CIN1
ONREG
1.8V
Regulator
VDDCORE
COUT2
COUT1
ONREG input must be tied to VDDIN.
25
32072C–AVR32–2010/03
AT32UC3A3/A4
6. I/O Line Considerations
6.1
JTAG Pins
TMS and TDI pins have pull-up resistors. TDO pin is an output, driven at up to VDDIO, and has
no pull-up resistor.
6.2
RESET_N Pin
The RESET_N pin is a schmitt input and integrates a permanent pull-up resistor to VDDIO. As
the product integrates a power-on reset cell, the RESET_N pin can be left unconnected in case
no reset from the system needs to be applied to the product.
6.3
TWI Pins
When these pins are used for TWI, the pins are open-drain outputs with slew-rate limitation and
inputs with inputs with spike filtering. When used as GPIO pins or used for other peripherals, the
pins have the same characteristics as other GPIO pins.
6.4
GPIO Pins
All the I/O lines integrate a programmable pull-up resistor. Programming of this pull-up resistor is
performed independently for each I/O line through the I/O Controller. After reset, I/O lines default
as inputs with pull-up resistors disabled, except when indicated otherwise in the column “Reset
State” of the I/O Controller multiplexing tables.
26
32072C–AVR32–2010/03
AT32UC3A3/A4
7. Memories
7.1
Embedded Memories
• Internal High-Speed Flash
– 256KBytes (AT32UC3A3256/S)
– 128Kbytes (AT32UC3A3128/S)
– 64Kbytes (AT32UC3A364/S)
• 0 wait state access at up to 36MHz in worst case conditions
• 1 wait state access at up to 66MHz in worst case conditions
• Pipelined Flash architecture, allowing burst reads from sequential Flash locations, hiding
penalty of 1 wait state access
• Pipelined Flash architecture typically reduces the cycle penalty of 1 wait state operation
to only 15% compared to 0 wait state operation
• 100 000 write cycles, 15-year data retention capability
• Sector lock capabilities, Bootloader protection, Security Bit
• 32 fuses, preserved during Chip Erase
• User page for data to be preserved during Chip Erase
• Internal High-Speed SRAM
– 64KBytes, Single-cycle access at full speed on CPU Local Bus and accessible through the
High Speed Bud (HSB) matrix
– 2x32KBytes, accessible independently through the High Speed Bud (HSB) matrix
7.2
Physical Memory Map
The System Bus is implemented as a bus matrix. All system bus addresses are fixed, and they
are never remapped in any way, not even in boot.
Note that AVR32 UC CPU uses unsegmented translation, as described in the AVR32UC Technical Architecture Manual.
The 32-bit physical address space is mapped as follows:
Table 7-1.
AT32UC3A3A4 Physical Memory Map
Size
Size
Size
AT32UC3A3256S
AT32UC3A3256
AT32UC3A4256S
AT32UC3A4256
AT32UC3A3128S
AT32UC3A3128
AT32UC3A4128S
AT32UC3A4128
AT32UC3A364S
AT32UC3A364
AT32UC3A464S
AT32UC3A464
Device
Start
Address
Embedded CPU SRAM
0x00000000
64KByte
64KByte
64KByte
Embedded Flash
0x80000000
256KByte
128KByte
64KByte
EBI SRAM CS0
0xC0000000
16MByte
16MByte
16MByte
EBI SRAM CS2
0xC8000000
16MByte
16MByte
16MByte
EBI SRAM CS3
0xCC000000
16MByte
16MByte
16MByte
EBI SRAM CS4
0xD8000000
16MByte
16MByte
16MByte
EBI SRAM CS5
0xDC000000
16MByte
16MByte
16MByte
EBI SRAM CS1
/SDRAM CS0
0xD0000000
128MByte
128MByte
128MByte
USB Data
0xE0000000
64KByte
64KByte
64KByte
27
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 7-1.
7.3
AT32UC3A3A4 Physical Memory Map
Size
Size
Size
Device
Start
Address
AT32UC3A3256S
AT32UC3A3256
AT32UC3A4256S
AT32UC3A4256
AT32UC3A3128S
AT32UC3A3128
AT32UC3A4128S
AT32UC3A4128
AT32UC3A364S
AT32UC3A364
AT32UC3A464S
AT32UC3A464
HRAMC0
0xFF000000
32KByte
32KByte
32KByte
HRAMC1
0xFF008000
32KByte
32KByte
32KByte
HSB-PB Bridge A
0xFFFF0000
64KByte
64KByte
64KByte
HSB-PB Bridge B
0xFFFE0000
64KByte
64KByte
64KByte
Peripheral Address Map
Table 7-2.
Peripheral Address Mapping
Address
Peripheral Name
0xFF100000
DMACA
DMA Controller - DMACA
0xFFFD0000
AES
Advanced Encryption Standard - AES
USB
USB 2.0 OTG Interface - USB
0xFFFE0000
0xFFFE1000
HMATRIX
HSB Matrix - HMATRIX
FLASHC
Flash Controller - FLASHC
0xFFFE1400
0xFFFE1C00
SMC
Static Memory Controller - SMC
0xFFFE2000
SDRAMC
SDRAM Controller - SDRAMC
ECCHRS
Error code corrector Hamming and Reed Solomon ECCHRS
BUSMON
Bus Monitor module - BUSMON
MCI
Mulitmedia Card Interface - MCI
MSI
Memory Stick Interface - MSI
0xFFFE2400
0xFFFE2800
0xFFFE4000
0xFFFE8000
0xFFFF0000
PDCA
Peripheral DMA Controller - PDCA
INTC
Interrupt controller - INTC
0xFFFF0800
28
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 7-2.
Peripheral Address Mapping
0xFFFF0C00
PM
Power Manager - PM
RTC
Real Time Counter - RTC
WDT
Watchdog Timer - WDT
EIC
External Interrupt Controller - EIC
0xFFFF0D00
0xFFFF0D30
0xFFFF0D80
0xFFFF1000
GPIO
0xFFFF1400
General Purpose Input/Output Controller - GPIO
USART0
Universal Synchronous/Asynchronous
Receiver/Transmitter - USART0
USART1
Universal Synchronous/Asynchronous
Receiver/Transmitter - USART1
USART2
Universal Synchronous/Asynchronous
Receiver/Transmitter - USART2
USART3
Universal Synchronous/Asynchronous
Receiver/Transmitter - USART3
0xFFFF1800
0xFFFF1C00
0xFFFF2000
0xFFFF2400
SPI0
Serial Peripheral Interface - SPI0
SPI1
Serial Peripheral Interface - SPI1
0xFFFF2800
0xFFFF2C00
TWIM0
Two-wire Master Interface - TWIM0
TWIM1
Two-wire Master Interface - TWIM1
0xFFFF3000
0xFFFF3400
SSC
Synchronous Serial Controller - SSC
TC0
Timer/Counter - TC0
ADC
Analog to Digital Converter - ADC
0xFFFF3800
0xFFFF3C00
0xFFFF4000
ABDAC
Audio Bitstream DAC - ABDAC
0xFFFF4400
TC1
Timer/Counter - TC1
29
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 7-2.
Peripheral Address Mapping
0xFFFF5000
TWIS0
Two-wire Slave Interface - TWIS0
TWIS1
Two-wire Slave Interface - TWIS1
0xFFFF5400
7.4
CPU Local Bus Mapping
Some of the registers in the GPIO module are mapped onto the CPU local bus, in addition to
being mapped on the Peripheral Bus. These registers can therefore be reached both by
accesses on the Peripheral Bus, and by accesses on the local bus.
Mapping these registers on the local bus allows cycle-deterministic toggling of GPIO pins since
the CPU and GPIO are the only modules connected to this bus. Also, since the local bus runs at
CPU speed, one write or read operation can be performed per clock cycle to the local busmapped GPIO registers.
The following GPIO registers are mapped on the local bus:
Table 7-3.
Local Bus Mapped GPIO Registers
Port
Register
Mode
Local Bus
Address
Access
0
Output Driver Enable Register (ODER)
WRITE
0x40000040
Write-only
SET
0x40000044
Write-only
CLEAR
0x40000048
Write-only
TOGGLE
0x4000004C
Write-only
WRITE
0x40000050
Write-only
SET
0x40000054
Write-only
CLEAR
0x40000058
Write-only
TOGGLE
0x4000005C
Write-only
Pin Value Register (PVR)
-
0x40000060
Read-only
Output Driver Enable Register (ODER)
WRITE
0x40000140
Write-only
SET
0x40000144
Write-only
CLEAR
0x40000148
Write-only
TOGGLE
0x4000014C
Write-only
WRITE
0x40000150
Write-only
SET
0x40000154
Write-only
CLEAR
0x40000158
Write-only
TOGGLE
0x4000015C
Write-only
-
0x40000160
Read-only
Output Value Register (OVR)
1
Output Value Register (OVR)
Pin Value Register (PVR)
30
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 7-3.
Local Bus Mapped GPIO Registers
Port
Register
Mode
Local Bus
Address
Access
2
Output Driver Enable Register (ODER)
WRITE
0x40000240
Write-only
SET
0x40000244
Write-only
CLEAR
0x40000248
Write-only
TOGGLE
0x4000024C
Write-only
WRITE
0x40000250
Write-only
SET
0x40000254
Write-only
CLEAR
0x40000258
Write-only
TOGGLE
0x4000025C
Write-only
Pin Value Register (PVR)
-
0x40000260
Read-only
Output Driver Enable Register (ODER)
WRITE
0x40000340
Write-only
SET
0x40000344
Write-only
CLEAR
0x40000348
Write-only
TOGGLE
0x4000034C
Write-only
WRITE
0x40000350
Write-only
SET
0x40000354
Write-only
CLEAR
0x40000358
Write-only
TOGGLE
0x4000035C
Write-only
-
0x40000360
Read-only
Output Value Register (OVR)
3
Output Value Register (OVR)
Pin Value Register (PVR)
31
32072C–AVR32–2010/03
AT32UC3A3/A4
8. Peripherals
8.1
Clock Connections
8.1.1
Timer/Counters
Each Timer/Counter channel can independently select an internal or external clock source for its
counter:
Table 8-1.
Timer/Counter clock connections
Source
Name
Connection
Internal
TIMER_CLOCK1
32 KHz clock
TIMER_CLOCK2
PBA Clock / 2
TIMER_CLOCK3
PBA Clock / 8
TIMER_CLOCK4
PBA Clock / 32
TIMER_CLOCK5
PBA Clock / 128
XC0
See Table 8.2 on page 32
External
XC1
XC2
8.2
Peripheral Multiplexing on I/O lines
Each GPIO line can be assigned to one of 4 peripheral functions; A, B, C or D. The following
table define how the I/O lines on the peripherals A, B, C or D are multiplexed by the GPIO.
Table 8-2.
GPIO Controller Function Multiplexing
BGA144
QFP144
PIN
GPIO Pin
Function A
Function B
Function C
G11
122
PA00
GPIO 0
USART0 - RTS
TC0 - CLK1
SPI1 - NPCS[3]
G12
123
PA01
GPIO 1
USART0 - CTS
TC0 - A1
USART2 - RTS
D8
15
PA02
GPIO 2
USART0 - CLK
TC0 - B1
SPI0 - NPCS[0]
G10
125
PA03
GPIO 3
USART0 - RXD
EIC - EXTINT[4]
DAC - DATA[0]
F9
126
PA04
GPIO 4
USART0 - TXD
EIC - EXTINT[5]
DAC - DATAN[0]
F10
124
PA05
GPIO 5
USART1 - RXD
TC1 - CLK0
USB - USB_ID
F8
127
PA06
GPIO 6
USART1 - TXD
TC1 - CLK1
USB USB_VBOF
E10
133
PA07
GPIO 7
SPI0 - NPCS[3]
DAC - DATAN[0]
USART1 - CLK
C11
137
PA08
GPIO 8
SPI0 - SCK
DAC - DATA[0]
TC1 - B1
B12
139
PA09
GPIO 9
SPI0 - NPCS[0]
EIC - EXTINT[6]
TC1 - A1
C12
138
PA10
GPIO 10
SPI0 - MOSI
USB USB_VBOF
TC1 - B0
D10
136
PA11
GPIO 11
SPI0 - MISO
USB - USB_ID
TC1 - A2
E12
132
PA12
GPIO 12
USART1 - CTS
SPI0 - NPCS[2]
TC1 - A0
F11
129
PA13
GPIO 13
USART1 - RTS
SPI0 - NPCS[1]
EIC - EXTINT[7]
Function D
32
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 8-2.
GPIO Controller Function Multiplexing
J6
100
PA14
GPIO 14
SPI0 - NPCS[1]
TWIMS0 TWALM
TWIMS1 - TWCK
J7
101
PA15
GPIO 15
MCI - CMD[1]
SPI1 - SCK
TWIMS1 - TWD
F12
128
PA16
GPIO 16
MCI - DATA[11]
SPI1 - MOSI
TC1 - CLK2
H7
116
PA17
GPIO 17
MCI - DATA[10]
SPI1 - NPCS[1]
ADC - AD[7]
K8
115
PA18
GPIO 18
MCI - DATA[9]
SPI1 - NPCS[2]
ADC - AD[6]
J8
114
PA19
GPIO 19
MCI - DATA[8]
SPI1 - MISO
ADC - AD[5]
ADC - AD[4]
J9
113
PA20
GPIO 20
NMI
SSC RX_FRAME_SYN
C
H9
109
PA21
GPIO 21
ADC - AD[0]
EIC - EXTINT[0]
USB - USB_ID
H10
110
PA22
GPIO 22
ADC - AD[1]
EIC - EXTINT[1]
USB USB_VBOF
G8
111
PA23
GPIO 23
ADC - AD[2]
EIC - EXTINT[2]
DAC - DATA[1]
G9
112
PA24
GPIO 24
ADC - AD[3]
EIC - EXTINT[3]
DAC - DATAN[1]
E9
119
PA25
GPIO 25
TWIMS0 - TWD
TWIMS1 TWALM
USART1 - DCD
D9
120
PA26
GPIO 26
TWIMS0 - TWCK
USART2 - CTS
USART1 - DSR
A4
26
PA27
GPIO 27
MCI - CLK
SSC - RX_DATA
USART3 - RTS
MSI - SCLK
A3
28
PA28
GPIO 28
MCI - CMD[0]
SSC RX_CLOCK
USART3 - CTS
MSI - BS
A6
23
PA29
GPIO 29
MCI - DATA[0]
USART3 - TXD
TC0 - CLK0
MSI - DATA[0]
C7
14
PA30
GPIO 30
MCI - DATA[1]
USART3 - CLK
DMACA DMAACK[0]
MSI - DATA[1]
B3
29
PA31
GPIO 31
MCI - DATA[2]
USART2 - RXD
DMACA DMARQ[0]
MSI - DATA[2]
A2
30
PB00
GPIO 32
MCI - DATA[3]
USART2 - TXD
ADC - TRIGGER
MSI - DATA[3]
C4
27
PB01
GPIO 33
MCI - DATA[4]
DAC - DATA[1]
EIC - SCAN[0]
MSI - INS
B4
25
PB02
GPIO 34
MCI - DATA[5]
DAC - DATAN[1]
EIC - SCAN[1]
A5
24
PB03
GPIO 35
MCI - DATA[6]
USART2 - CLK
EIC - SCAN[2]
B6
22
PB04
GPIO 36
MCI - DATA[7]
USART3 - RXD
EIC - SCAN[3]
H12
121
PB05
GPIO 37
USB - USB_ID
TC0 - A0
EIC - SCAN[4]
D12
134
PB06
GPIO 38
USB USB_VBOF
TC0 - B0
EIC - SCAN[5]
D11
135
PB07
GPIO 39
SPI1 - SCK
SSC TX_CLOCK
EIC - SCAN[6]
C8
11
PB08
GPIO 40
SPI1 - MISO
SSC - TX_DATA
EIC - SCAN[7]
E7
17
PB09
GPIO 41
SPI1 - NPCS[0]
SSC - RX_DATA
EBI - NCS[4]
SPI1 - MOSI
SSC RX_FRAME_SYN
C
EBI - NCS[5]
USART1 - RXD
SSC TX_FRAME_SYN
C
PM - GCLK[1]
D7
16
PB10
GPIO 42
B2
31
PB11
GPIO 43
K5
98
PC00
GPIO 45
33
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 8-2.
GPIO Controller Function Multiplexing
H6
99
PC01
GPIO 46
A7
18
PC02
GPIO 47
B7
19
PC03
GPIO 48
A8
13
PC04
GPIO 49
A9
12
PC05
GPIO 50
G1
55
PX00
GPIO 51
EBI - DATA[10]
USART0 - RXD
USART1 - RI
H1
59
PX01
GPIO 52
EBI - DATA[9]
USART0 - TXD
USART1 - DTR
J2
62
PX02
GPIO 53
EBI - DATA[8]
USART0 - CTS
PM - GCLK[0]
K1
63
PX03
GPIO 54
EBI - DATA[7]
USART0 - RTS
J1
60
PX04
GPIO 55
EBI - DATA[6]
USART1 - RXD
G2
58
PX05
GPIO 56
EBI - DATA[5]
USART1 - TXD
F3
53
PX06
GPIO 57
EBI - DATA[4]
USART1 - CTS
F2
54
PX07
GPIO 58
EBI - DATA[3]
USART1 - RTS
D1
50
PX08
GPIO 59
EBI - DATA[2]
USART3 - RXD
C1
49
PX09
GPIO 60
EBI - DATA[1]
USART3 - TXD
B1
37
PX10
GPIO 61
EBI - DATA[0]
USART2 - RXD
L1
67
PX11
GPIO 62
EBI - NWE1
USART2 - TXD
D6
34
PX12
GPIO 63
EBI - NWE0
USART2 - CTS
C6
33
PX13
GPIO 64
EBI - NRD
USART2 - RTS
M4
68
PX14
GPIO 65
EBI - NCS[1]
E6
40
PX15
GPIO 66
EBI - ADDR[19]
USART3 - RTS
TC0 - B0
C5
32
PX16
GPIO 67
EBI - ADDR[18]
USART3 - CTS
TC0 - A1
K6
83
PX17
GPIO 68
EBI - ADDR[17]
DMACA DMARQ[1]
TC0 - B1
L6
84
PX18
GPIO 69
EBI - ADDR[16]
DMACA DMAACK[1]
TC0 - A2
D5
35
PX19
GPIO 70
EBI - ADDR[15]
EIC - SCAN[0]
TC0 - B2
L4
73
PX20
GPIO 71
EBI - ADDR[14]
EIC - SCAN[1]
TC0 - CLK0
M5
80
PX21
GPIO 72
EBI - ADDR[13]
EIC - SCAN[2]
TC0 - CLK1
M1
72
PX22
GPIO 73
EBI - ADDR[12]
EIC - SCAN[3]
TC0 - CLK2
M6
85
PX23
GPIO 74
EBI - ADDR[11]
EIC - SCAN[4]
SSC TX_CLOCK
M7
86
PX24
GPIO 75
EBI - ADDR[10]
EIC - SCAN[5]
SSC - TX_DATA
M8
92
PX25
GPIO 76
EBI - ADDR[9]
EIC - SCAN[6]
SSC - RX_DATA
EIC - SCAN[7]
SSC RX_FRAME_SYN
C
L9
90
PX26
GPIO 77
EBI - ADDR[8]
TC0 - A0
K9
89
PX27
GPIO 78
EBI - ADDR[7]
SPI0 - MISO
SSC TX_FRAME_SYN
C
L10
91
PX28
GPIO 79
EBI - ADDR[6]
SPI0 - MOSI
SSC RX_CLOCK
34
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 8-2.
8.3
GPIO Controller Function Multiplexing
K11
94
PX29
GPIO 80
EBI - ADDR[5]
SPI0 - SCK
M11
96
PX30
GPIO 81
EBI - ADDR[4]
SPI0 - NPCS[0]
M10
97
PX31
GPIO 82
EBI - ADDR[3]
SPI0 - NPCS[1]
M9
93
PX32
GPIO 83
EBI - ADDR[2]
SPI0 - NPCS[2]
M12
95
PX33
GPIO 84
EBI - ADDR[1]
SPI0 - NPCS[3]
J3
61
PX34
GPIO 85
EBI - ADDR[0]
SPI1 - MISO
PM - GCLK[0]
C2
38
PX35
GPIO 86
EBI - DATA[15]
SPI1 - MOSI
PM - GCLK[1]
D3
44
PX36
GPIO 87
EBI - DATA[14]
SPI1 - SCK
PM - GCLK[2]
D2
45
PX37
GPIO 88
EBI - DATA[13]
SPI1 - NPCS[0]
PM - GCLK[3]
E1
51
PX38
GPIO 89
EBI - DATA[12]
SPI1 - NPCS[1]
USART1 - DCD
F1
52
PX39
GPIO 90
EBI - DATA[11]
SPI1 - NPCS[2]
USART1 - DSR
A1
36
PX40
GPIO 91
EBI - SDCS
M2
71
PX41
GPIO 92
EBI - CAS
M3
69
PX42
GPIO 93
EBI - RAS
L7
88
PX43
GPIO 94
EBI - SDA10
USART1 - RI
K2
66
PX44
GPIO 95
EBI - SDWE
USART1 - DTR
L3
70
PX45
GPIO 96
EBI - SDCK
K4
74
PX46
GPIO 97
EBI - SDCKE
D4
39
PX47
GPIO 98
EBI - NANDOE
ADC - TRIGGER
MCI - DATA[11]
F5
41
PX48
GPIO 99
EBI - ADDR[23]
USB USB_VBOF
MCI - DATA[10]
F4
43
PX49
GPIO 100
EBI - CFRNW
USB - USB_ID
MCI - DATA[9]
G4
75
PX50
GPIO 101
EBI - CFCE2
TC1 - B2
MCI - DATA[8]
G5
77
PX51
GPIO 102
EBI - CFCE1
DMACA DMAACK[0]
MCI - DATA[15]
K7
87
PX52
GPIO 103
EBI - NCS[3]
DMACA DMARQ[0]
MCI - DATA[14]
E4
42
PX53
GPIO 104
EBI - NCS[2]
E3
46
PX54
GPIO 105
EBI - NWAIT
USART3 - TXD
MCI - DATA[12]
J5
79
PX55
GPIO 106
EBI - ADDR[22]
EIC - SCAN[3]
USART2 - RXD
J4
78
PX56
GPIO 107
EBI - ADDR[21]
EIC - SCAN[2]
USART2 - TXD
H4
76
PX57
GPIO 108
EBI - ADDR[20]
EIC - SCAN[1]
USART3 - RXD
H3
57
PX58
GPIO 109
EBI - NCS[0]
EIC - SCAN[0]
USART3 - TXD
G3
56
PX59
GPIO 110
EBI - NANDWE
MCI - DATA[13]
MCI - CMD[1]
Oscillator Pinout
Table 8-3.
Oscillator Pinout
pin
pin
Pad
Oscillator pin
A7
18
PC02
xin0
A8
13
PC04
xin1
35
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 8-3.
Oscillator Pinout
K5
98
PC00
xin32
B7
19
PC03
xout0
A9
12
PC05
xout1
H6
99
PC01
xout32
36
32072C–AVR32–2010/03
AT32UC3A3/A4
8.4
8.4.1
8.4.2
Peripheral overview
Power Manager
•
•
•
•
•
•
•
•
•
•
•
•
•
Controls integrated oscillators and PLLs
Generates clocks and resets for digital logic
Supports 2 crystal oscillators 0.4-20MHz
Supports 2 PLLs 40-240MHz
Supports 32KHz ultra-low power oscillator
Integrated low-power RC oscillator
On-the fly frequency change of CPU, HSB, PBA, and PBB clocks
Sleep modes allow simple disabling of logic clocks, PLLs, and oscillators
Module-level clock gating through maskable peripheral clocks
Wake-up from internal or external interrupts
Generic clocks with wide frequency range provided
Automatic identification of reset sources
Controls brownout detector (BOD and BOD33), RC oscillator, and bandgap voltage reference
through control and calibration registers
Real Time Counter
• 32-bit real-time counter with 16-bit prescaler
• Clocked from RC oscillator or 32KHz oscillator
• Long delays
•
•
•
•
– Max timeout 272years
High resolution: Max count frequency 16KHz
Extremely low power consumption
Available in all sleep modes except Static
Interrupt on wrap
8.4.3
Watchdog Timer
• Watchdog timer counter with 32-bit prescaler
• Clocked from the system RC oscillator (RCSYS)
8.4.4
Interrupt Controller
• Autovectored low latency interrupt service with programmable priority
– 4 priority levels for regular, maskable interrupts
– One Non-Maskable Interrupt
37
32072C–AVR32–2010/03
AT32UC3A3/A4
• Up to 64 groups of interrupts with up to 32 interrupt requests in each group
8.4.5
External Interrupts Controller
• Dedicated interrupt request for each interrupt
• Individually maskable interrupts
• Interrupt on rising or falling edge
• Interrupt on high or low level
• Asynchronous interrupts for sleep modes without clock
• Filtering of interrupt lines
• Maskable NMI interrupt
• Keypad scan support
•
8.4.6
Flash Controller
• Controls flash block with dual read ports allowing staggered reads.
• Supports 0 and 1 wait state bus access.
• Allows interleaved burst reads for systems with one wait state, outputting one 32-bit word per
clock cycle.
• 32-bit HSB interface for reads from flash array and writes to page buffer.
• 32-bit PB interface for issuing commands to and configuration of the controller.
• 16 lock bits, each protecting a region consisting of (total number of pages in the flash block / 16)
•
•
•
•
•
•
•
8.4.7
pages.
Regions can be individually protected or unprotected.
Additional protection of the Boot Loader pages.
Supports reads and writes of general-purpose NVM bits.
Supports reads and writes of additional NVM pages.
Supports device protection through a security bit.
Dedicated command for chip-erase, first erasing all on-chip volatile memories before erasing
flash and clearing security bit.
Interface to Power Manager for power-down of flash-blocks in sleep mode.
HSB Bus Matrix
•
•
•
•
•
•
•
User Interface on peripheral bus
Configurable Number of Masters (Up to sixteen)
Configurable Number of Slaves (Up to sixteen)
One Decoder for Each Master
Three Different Memory Mappings for Each Master (Internal and External boot, Remap)
One Remap Function for Each Master
Programmable Arbitration for Each Slave
– Round-Robin
– Fixed Priority
• Programmable Default Master for Each Slave
– No Default Master
– Last Accessed Default Master
– Fixed Default Master
38
32072C–AVR32–2010/03
AT32UC3A3/A4
• One Cycle Latency for the First Access of a Burst
• Zero Cycle Latency for Default Master
• One Special Function Register for Each Slave (Not dedicated)
8.4.8
External Bus Interface
• Optimized for application memory space support
• Integrates three external memory controllers:
– Static Memory Controller (SMC)
– SDRAM Controller (SDRAMC)
– Error Corrected Code (ECCHRS) controller
• Additional logic for NAND Flash/SmartMediaTM and CompactFlashTM support
– NAND Flash support: 8-bit as well as 16-bit devices are supported
– CompactFlash support: all modes (Attribute Memory, Common Memory, I/O, True IDE) are
supported but the signals _IOIS16 (I/O and True IDE modes) and _ATA SEL (True IDE mode)
are not handled.
• Optimized external bus:16-bit data bus
– Up to 24-bit Address Bus, Up to 8-Mbytes Addressable
– Optimized pin multiplexing to reduce latencies on external memories
• Up to 6 Chip Selects, Configurable Assignment:
– Static Memory Controller on Chip Select 0
– SDRAM Controller or Static Memory Controller on Chip Select 1
– Static Memory Controller on Chip Select 2, Optional NAND Flash support
– Static Memory Controller on Chip Select 3, Optional NAND Flash support
– Static Memory Controller on Chip Select 4, Optional CompactFlashTM support
– Static Memory Controller on Chip Select 5, Optional CompactFlashTM support
8.4.9
Static Memory Controller
• 6 chip selects available
• 16-Mbytes address space per chip select
• 8- or 16-bit data bus
• Word, halfword, byte transfers
• Byte write or byte select lines
• Programmable setup, pulse and hold time for read signals per chip select
• Programmable setup, pulse and hold time for write signals per chip select
• Programmable data float time per chip select
• Compliant with LCD module
• External wait request
• Automatic switch to slow clock mode
• Asynchronous read in page mode supported: page size ranges from 4 to 32 bytes
8.4.10
SDRAM Controller
• 128-Mbytes address space
• Numerous configurations supported
– 2K, 4K, 8K row address memory parts
– SDRAM with two or four internal banks
– SDRAM with 16-bit data path
• Programming facilities
– Word, halfword, byte access
– Automatic page break when memory boundary has been reached
– Multibank ping-pong access
39
32072C–AVR32–2010/03
AT32UC3A3/A4
•
•
•
•
•
– Timing parameters specified by software
– Automatic refresh operation, refresh rate is programmable
– Automatic update of DS, TCR and PASR parameters (mobile SDRAM devices)
Energy-saving capabilities
– Self-refresh, power-down, and deep power-down modes supported
– Supports mobile SDRAM devices
Error detection
– Refresh error interrupt
SDRAM power-up initialization by software
CAS latency of one, two, and three supported
Auto Precharge command not used
8.4.11
Peripheral DMA Controller
• Multiple channels
• Generates transfers to/from peripherals such as USART and SPI
• Two address pointers/counters per channel allowing double buffering
• Performance monitors to measure average and maximum transfer latency
8.4.12
DMA Controller
• 2 HSB Master Interfaces
• Channels
• Software and Hardware Handshaking Interfaces
– 9 Hardware Handshaking Interfaces
• Memory/Non-Memory Peripherals to Memory/Non-Memory Peripherals Transfer
• Single-block DMA Transfer
• Multi-block DMA Transfer
– Linked Lists
– Auto-Reloading
– Contiguous Blocks
• DMA Controller is Always the Flow Controller
• Additional Features
– Scatter and Gather Operations
– Channel Locking
– Bus Locking
– FIFO Mode
– Pseudo Fly-by Operation
8.4.13
General-Purpose Input/Output Controller
•
•
•
•
•
Each I/O line of the GPIO features:
Configurable pin-change, rising-edge or falling-edge interrupt on any I/O line
A glitch filter providing rejection of pulses shorter than one clock cycle
Input visibility and output control
Multiplexing of up to four peripheral functions per I/O line
Programmable internal pull-up resistor
Serial Peripheral Interface
• Compatible with an embedded 32-bit microcontroller
• Supports communication with serial external devices
– Four chip selects with external decoder support allow communication with up to 15
peripherals
40
32072C–AVR32–2010/03
AT32UC3A3/A4
– Serial memories, such as DataFlash and 3-wire EEPROMs
– Serial peripherals, such as ADCs, DACs, LCD controllers, CAN controllers and Sensors
– External co-processors
• Master or Slave Serial Peripheral Bus Interface
– 4 - to 16-bit programmable data length per chip select
– Programmable phase and polarity per chip select
– Programmable transfer delays between consecutive transfers and between clock and data
per chip select
– Programmable delay between consecutive transfers
– Selectable mode fault detection
• Connection to Peripheral DMA Controller channel capabilities optimizes data transfers
– One channel for the receiver, one channel for the transmitter
– Next buffer support
– Four character FIFO in reception
8.4.14
Two-Wire Slave Interface
• Compatible with I²C standard
•
•
•
•
•
•
8.4.15
– 100 and 400 kbit/s transfer speeds
– 7 and 10-bit and General Call addressing
Compatible with SMBus standard
– Hardware Packet Error Checking (CRC) generation and verification with ACK response
– SMBALERT interface
– 25 ms clock low timeout delay
– 25 ms slave cumulative clock low extend time
Compatible with PMBus
DMA interface for reducing CPU load
Arbitrary transfer lengths, including 0 data bytes
Optional clock stretching if transmit or receive buffers not ready for data transfer
32-bit Peripheral Bus interface for configuration of the interface
Two-Wire Master Interface
• Compatible with I²C standard
– Multi-master support
– 100 and 400 kbit/s transfer speeds
– 7- and 10-bit and General Call addressing
• Compatible with SMBus standard
– Hardware Packet Error Checking (CRC) generation and verification with ACK control
– SMBus ALERT interface
– 25 ms clock low timeout delay
– 10 ms master cumulative clock low extend time
– 25 ms slave cumulative clock low extend time
41
32072C–AVR32–2010/03
AT32UC3A3/A4
•
•
•
•
•
8.4.16
Compatible with PMBus
Compatible with Atmel Two-Wire Interface Serial Memories
DMA interface for reducing CPU load
Arbitrary transfer lengths, including 0 data bytes
Optional clock stretching if transmit or receive buffers not ready for data transfer
Synchronous Serial Controller
• Provides serial synchronous communication links used in audio and telecom applications
• Independent receiver and transmitter, common clock divider
• Interfaced with two Peripheral DMA Controller channels to reduce processor overhead
• Configurable frame sync and data length
• Receiver and transmitter can be configured to start automatically or on detection of different
events on the frame sync signal
• Receiver and transmitter include a data signal, a clock signal and a frame synchronization signal
8.4.17
Universal Synchronous Asynchronous Receiver Transmitter
• Programmable Baud Rate Generator
• 5- to 9-bit Full-duplex Synchronous or Asynchronous Serial Communications
•
•
•
•
•
– 1, 1.5 or 2 Stop Bits in Asynchronous Mode or 1 or 2 Stop Bits in Synchronous Mode
– Parity Generation and Error Detection
– Framing Error Detection, Overrun Error Detection
– MSB- or LSB-first
– Optional Break Generation and Detection
– By 8 or by 16 Over-sampling Receiver Frequency
– Optional Hardware Handshaking RTS-CTS
– Optional Modem Signal Management DTR-DSR-DCD-RI
– Receiver Time-out and Transmitter Timeguard
– Optional Multidrop Mode with Address Generation and Detection
RS485 with Driver Control Signal
ISO7816, T = 0 or T = 1 Protocols for Interfacing with Smart Cards
– NACK Handling, Error Counter with Repetition and Iteration Limit
IrDA Modulation and Demodulation
– Communication at up to 115.2 Kbps
SPI Mode
– Master or Slave
– Serial Clock Programmable Phase and Polarity
– SPI Serial Clock (CLK) Frequency up to Internal Clock Frequency CLK_USART/4
LIN Mode
– Compliant with LIN 1.3 and LIN 2.0 specifications
– Master or Slave
– Processing of frames with up to 256 data bytes
– Response Data length can be configurable or defined automatically by the Identifier
– Self synchronization in Slave node configuration
– Automatic processing and verification of the “Synch Break” and the “Synch Field”
– The “Synch Break” is detected even if it is partially superimposed with a data byte
– Automatic Identifier parity calculation/sending and verification
– Parity sending and verification can be disabled
– Automatic Checksum calculation/sending and verification
– Checksum sending and verification can be disabled
– Support both “Classic” and “Enhanced” checksum types
42
32072C–AVR32–2010/03
AT32UC3A3/A4
– Full LIN error checking and reporting
– Frame Slot Mode: the Master allocates slots to the scheduled frames automatically.
– Generation of the Wakeup signal
• Test Modes
– Remote Loopback, Local Loopback, Automatic Echo
• Supports Connection of Two Peripheral DMA Controller Channels (PDCA)
– Offers Buffer Transfer without Processor Intervention
8.4.18
USB On-The-Go Interface
• Compatible with the USB 2.0 specification
• Supports High (480Mbit/s), Full (12Mbit/s) and Low (1.5Mbit/s) speed communication and On•
•
•
•
•
•
8.4.19
The-Go
eight pipes/endpoints
2368 of Embedded Dual-Port RAM (DPRAM) for Pipes/Endpoints
Up to 2 memory banks per Pipe/Endpoint (Not for Control Pipe/Endpoint)
Flexible Pipe/Endpoint configuration and management with dedicated DMA channels
On-Chip UTMI transceiver including Pull-Ups/Pull-downs
On-Chip OTG pad including VBUS analog comparator
Timer/Counter
• Three 16-bit Timer Counter channels
• A wide range of functions including:
– Frequency measurement
– Event counting
– Interval measurement
– Pulse generation
– Delay timing
– Pulse width modulation
– Up/down capabilities
• Each channel is user-configurable and contains:
– Three external clock inputs
– Five internal clock inputs
– Two multi-purpose input/output signals
• Internal interrupt signal
• Two global registers that act on all three TC channels
8.4.20
Analog-to-Digital Converter
• Integrated multiplexer offering up to eight independent analog inputs
• Individual enable and disable of each channel
• Hardware or software trigger
– External trigger pin
– Timer counter outputs (corresponding TIOA trigger)
• Peripheral DMA Controller support
• Possibility of ADC timings configuration
• Sleep mode and conversion sequencer
– Automatic wakeup on trigger and back to sleep mode after conversions of all enabled
channels
43
32072C–AVR32–2010/03
AT32UC3A3/A4
8.4.21
HSB Bus Performance Monitor
• Allows performance monitoring of High Speed Bus master interfaces
– Up to 4 masters can be monitored
– Peripheral Bus access to monitor registers
• The following is monitored
– Data transfer cycles
– Bus stall cycles
– Maximum access latency for a single transfer
• Automatic handling of event overflow
8.4.22
Multimedia Card Interface
• Compatible with Multimedia Card specification version 4.3
• Compatible with SD Memory Card specification version 2.0
• Compatible with SDIO specification version 1.1
• Compatible with CE-ATA specification 1.1
• Cards clock rate up to master clock divided by two
• Boot Operation Mode support
• High Speed mode support
• Embedded power management to slow down clock rate when not used
• Supports 2 Slots
•
•
•
•
•
8.4.23
– Each slot for either a MultiMediaCard bus (up to 30 cards) or an SD Memory Card
Support for stream, block and multi-block data read and write
Supports connection to DMA Controller
– Minimizes processor intervention for large buffer transfers
Built in FIFO (from 16 to 256 bytes) with large memory aperture supporting incremental access
Support for CE-ATA completion cignal disable command
Protection against unexpected modification on-the-Fly of the configuration registers
Error Corrected Code Controller
• Hardware Error Corrected Code Generation with two methods :
•
•
•
•
– Hamming code detection and correction by software (ECC-H)
– Reed-Solomon code detection by hardware, correction by hardware or software (ECC-RS)
Supports NAND Flash and SmartMedia™ devices with 8- or 16-bit data path for ECC-H, and with
8-bit data path for ECC-RS
Supports NAND Flash and SmartMedia™ with page sizes of 528, 1056, 2112, and 4224 bytes
(specified by software)
ECC_H supports :
– One bit correction per page of 512,1024,2048, or 4096 bytes
– One bit correction per sector of 512 bytes of data for a page size of 512, 1024, 2048, or 4096
bytes
– One bit correction per sector of 256 bytes of data for a page size of 512, 1024, 2048, or 4096
bytes
ECC_RS supports :
– 4 errors correction per sector of 512 bytes of data for a page size of 512, 1024, 2048, and
4096 bytes with 8-bit data path
44
32072C–AVR32–2010/03
AT32UC3A3/A4
8.4.24
Advanced Encryption Standart
• Compliant with FIPS Publication 197, Advanced Encryption Standard (AES)
• 128-bit/192-bit/256-bit cryptographic key
• 12/14/16 clock cycles encryption/decryption processing time with a 128-bit/192-bit/256-bit
cryptographic key
• Support of the five standard modes of operation specified in the NIST Special Publication 800-
•
•
•
•
8.4.25
38A, Recommendation for Block Cipher Modes of Operation - Methods and Techniques:
– Electronic Code Book (ECB)
– Cipher Block Chaining (CBC)
– Cipher Feedback (CFB)
– Output Feedback (OFB)
– Counter (CTR)
8-, 16-, 32-, 64- and 128-bit data size possible in CFB mode
Last output data mode allows optimized Message Authentication Code (MAC) generation
Hardware counter measures against differential power analysis attacks
Connection to DMA Controller capabilities optimizes data transfers for all operating modes
Audio Bitstream DAC
• Digital Stereo DAC
• Oversampled D/A conversion architecture
– Oversampling ratio fixed 128x
– FIR equalization filter
– Digital interpolation filter: Comb4
– 3rd Order Sigma-Delta D/A converters
• Digital bitstream outputs
• Parallel interface
• Connected to DMA Controller for background transfer without CPU intervention
8.4.26
8.4.27
On-Chip Debug
•
•
•
•
•
•
•
•
Debug interface in compliance with IEEE-ISTO 5001-2003 (Nexus 2.0) Class 2+
JTAG access to all on-chip debug functions
Advanced program, data, ownership, and watchpoint trace supported
NanoTrace JTAG-based trace access
Auxiliary port for high-speed trace information
Hardware support for 6 program and 2 data breakpoints
Unlimited number of software breakpoints supported
Automatic CRC check of memory regions
JTAG and Boundary Scan
• IEEE1149.1 compliant JTAG Interface
• Boundary-Scan Chain for board-level testing
• Direct memory access and programming capabilities through JTAG Interface
•
45
32072C–AVR32–2010/03
AT32UC3A3/A4
9. Boot Sequence
This chapter summarizes the boot sequence of the AT32UC3A3/A4. The behavior after powerup is controlled by the Power Manager. For specific details, refer to Section 9. ”Power Manager
(PM)” on page 39.
9.1
Starting of Clocks
After power-up, the device will be held in a reset state by the Power-On Reset circuitry, until the
power has stabilized throughout the device. Once the power has stabilized, the device will use
the internal RC Oscillator as clock source.
On system start-up, the PLLs are disabled. All clocks to all modules are running. No clocks have
a divided frequency, all parts of the system receives a clock with the same frequency as the
internal RC Oscillator.
9.2
Fetching of Initial Instructions
After reset has been released, the AVR32 UC CPU starts fetching instructions from the reset
address, which is 0x8000_0000. This address points to the first address in the internal Flash.
The code read from the internal Flash is free to configure the system to use for example the
PLLs, to divide the frequency of the clock routed to some of the peripherals, and to gate the
clocks to unused peripherals.
46
32072C–AVR32–2010/03
AT32UC3A3/A4
10. Electrical Characteristics
10.1
Absolute Maximum Ratings*
Operating Temperature.................................... -40°C to +85°C
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
Storage Temperature ..................................... -60°C to +150°C
Voltage on Input Pin
with respect to Ground ........................................-0.3V to 3.6V
Maximum Operating Voltage (VDDCORE) ..................... 1.95V
Maximum Operating Voltage (VDDIO).............................. 3.6V
Total DC Output Current on all I/O Pin
for TQFP144 package ................................................. 370 mA
for TFBGA144 package ............................................... 370 mA
10.2
DC Characteristics
The following characteristics are applicable to the operating temperature range: T A = -40°C to 85°C, unless otherwise
specified and are certified for a junction temperature up toTJ = 100°C.
Table 10-1.
DC Characteristics
Symbol
Parameter
VVDDCORE
DC Supply Core
VVDDIO
Conditions
Min.
Typ.
Max.
Unit
1.65
1.95
V
DC Supply Peripheral I/Os
3.0
3.6
V
VIL
Input Low-level Voltage
-0.3
+0.8
V
VIH
Input High-level Voltage
2.0
VVDDIO
+0.3
V
VOL
Output Low-level Voltage
IOL = -2mA for Pin drive x1
IOL = -4mA for Pin drive x2
IOL = -8mA for Pin drive x3
0.4
V
VOH
Output High-level Voltage
IOL = 2mA for Pin drive x1
IOL = 4mA for Pin drive x2
IOL = 8mA for Pin drive x3
ILEAK
Input Leakage Current
Pullup resistors disabled
CIN
Input Capacitance
RPULLUP
Pull-up Resistance
IO
Output Current
Pin drive 1x
Pin drive 2x
Pin drive 3x
See Table 10-2
ISC
Static Current
VVDDIO
-0.4
V
1
7
9
On VVDDIN = 3.3V,
CPU in static mode
15
µA
pF
25
KΩ
2.0
4.0
8.0
mA
TA = 25°C
30
µA
TA = 85°C
175
µA
47
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 10-2.
PIN
Pins Drive Capabilities
Drive
PIN
Drive
PIN
Drive
PIN
Drive
PIN
Drive
PA00
3x
PA22
1x
PC00
1x
P1x6
2x
P3x8
2x
PA01
1x
PA23
1x
PC01
1x
P1x7
2x
P3x9
2x
PA02
1x
PA24
1x
PC02
1x
P1x8
2x
PX40
2x
PA03
1x
PA25
1x
PC03
1x
P1x9
2x
PX41
2x
PA04
1x
PA26
1x
PC04
1x
P2x0
2x
PX42
2x
PA05
1x
PA27
2x
PC05
1x
P21x
2x
PX43
2x
PA06
1x
PA28
1x
PX00
2x
P2x2
2x
PX44
2x
PA07
1x
PA29
1x
PX01
2x
P2x3
2x
PX45
3x
PA08
3x
PA30
1x
PX02
2x
P2x4
2x
PX46
2x
PA09
2x
PA31
1x
PX03
2x
P2x5
2x
PX47
2x
PA10
2x
PB00
1x
PX04
2x
P2x6
2x
PX48
2x
PA11
2x
PB01
1x
PX05
2x
P2x7
2x
PX49
2x
PA12
1x
PB02
1x
PX06
2x
P2x8
2x
PX50
2x
PA13
1x
PB03
1x
PX07
2x
P2x9
2x
PX51
2x
PA14
1x
PB04
1x
PX08
2x
P3x0
2x
PX52
2x
PA15
1x
PB05
3x
PX09
2x
P31x
2x
PX53
2x
PA16
1x
PB06
1x
P1x0
2x
P32x
2x
PX54
2x
PA17
1x
PB07
3x
P1x1
2x
P3x3
2x
PX55
2x
PA18
1x
PB08
2x
P1x2
2x
P3x4
2x
PX56
2x
PA19
1x
PB09
2x
P1x3
2x
P3x5
2x
PX57
2x
PA20
1x
PB10
2x
P1x4
2x
P3x6
2x
PX58
2x
PA21
1x
PB11
1x
P1x5
2x
P3x7
2x
PX59
2x
48
32072C–AVR32–2010/03
AT32UC3A3/A4
10.3
Regulator characteristics
Table 10-3.
Electrical Characteristics
Symbol
Parameter
VVDDIN
VVDDCORE
Table 10-4.
Conditions
Min.
Typ.
Max.
Unit
Supply voltage (input)
2.7
3.3
3.6
V
Supply voltage (output)
1.81
1.85
1.89
V
Decoupling Requirements
Symbol
Parameter
CIN1
Typ.
Technology
Unit
Input Regulator Capacitor 1
1
NPO
nF
CIN2
Input Regulator Capacitor 2
4.7
X7R
µF
COUT1
Output Regulator Capacitor 1
470
NPO
pF
COUT2
Output Regulator Capacitor 2
2.2
X7R
µF
10.4
Conditions
Analog characteristics
10.4.1
ADC
Table 10-5.
Electrical Characteristics
Symbol
Parameter
VVDDANA
Analog Power Supply
Table 10-6.
Conditions
Typ.
Max.
Unit
3.0
3.6
V
Typ.
Technology
Unit
100
NPO
nF
Decoupling Requirements
Symbol
Parameter
CVDDANA
Power Supply Capacitor
10.4.2
Min.
Conditions
BOD
Table 10-7.
Symbol
BOD Level Values
Parameter Value
Conditions
Min.
Typ.
Max.
Unit
00 1111b
1.78
V
01 0111b
1.69
V
01 1111b
1.60
V
10 0111b
1.51
V
BODLEVEL
Table 10-7 describes the values of the BODLEVEL field in the flash FGPFR register.
Table 10-8.
BOD Timing
Symbol
Parameter
Conditions
TBOD
Minimum time with VDDCORE <
VBOD to detect power failure
Falling VDDCORE from 1.8V to 1.1V
Min.
Typ.
Max.
Unit
300
800
ns
49
32072C–AVR32–2010/03
AT32UC3A3/A4
10.4.3
Reset Sequence
Table 10-9.
Electrical Characteristics
Symbol
Parameter
Conditions
Min.
VDDRR
VDDCORE rise rate to ensure poweron-reset
0.01
VDDFR
VDDCORE fall rate to ensure poweron-reset
0.01
VPOR+
Rising threshold voltage: voltage up
to which device is kept under reset by
POR on rising VDDCORE
Rising VDDCORE: VRESTART ->
VPOR+
1.35
VPOR-
Falling threshold voltage: voltage
when POR resets device on falling
VDDCORE
Falling VDDCORE: 1.8V -> VPOR+
1.25
VRESTART
On falling VDDCORE, voltage must
go down to this value before supply
can rise again to ensure reset signal
is released at VPOR+
Falling VDDCORE: 1.8V -> VRESTART
-0.1
TPOR
Minimum time with VDDCORE <
VPOR-
Falling VDDCORE: 1.8V -> 1.1V
TRST
Time for reset signal to be
propagated to system
TSSU1
Time for Cold System Startup: Time
for CPU to fetch its first instruction
(RCosc not calibrated)
TSSU2
Time for Hot System Startup: Time for
CPU to fetch its first instruction
(RCosc calibrated)
Typ.
Max.
Unit
V/ms
400
V/ms
1.5
1.6
V
1.3
1.4
V
0.5
V
15
200
480
420
µs
400
µs
960
µs
µs
50
32072C–AVR32–2010/03
AT32UC3A3/A4
Figure 10-1. MCU Cold Start-Up RESET_N tied to VDDIN
VDDCORE
VPOR-
VPOR+
VRESTART
RESET_N
Internal
POR Reset
TPOR
TRST
TSSU1
Internal
MCU Reset
Figure 10-2. MCU Cold Start-Up RESET_N Externally Driven
VDDCORE
VPOR-
VPOR+
VRESTART
RESET_N
Internal
POR Reset
TPOR
TRST
TSSU1
Internal
MCU Reset
Figure 10-3. MCU Hot Start-Up
VDDCORE
RESET_N
BOD Reset
WDT Reset
TSSU2
Internal
MCU Reset
51
32072C–AVR32–2010/03
AT32UC3A3/A4
10.4.4
RESET_N Characteristics
Table 10-10. RESET_N Waveform Parameters
Symbol
Parameter
tRESET
RESET_N minimum pulse width
Conditions
Min.
10
Typ.
Max.
Unit
ns
52
32072C–AVR32–2010/03
AT32UC3A3/A4
10.5
Power Consumption
The values in Table 10-11 and Table 10-12 on page 54 are measured values of power consumption with operating conditions as follows:
•VDDIO = 3.3V
•TA = 25°C
•I/Os are configured in input, pull-up enabled.
Figure 10-4. Measurement Setup
VDDANA
Amp0
VDDIO
Amp1
VDDIN
Internal
Voltage
Regulator
VDDCORE
GNDCORE
GNDPLL
53
32072C–AVR32–2010/03
AT32UC3A3/A4
These figures represent the power consumption measured on the power supplies.
Table 10-11. Power Consumption for Different Modes
Mode
Conditions(1)
Active
CPU running from flash
CPU clocked from PLL0 at f MHz
Voltage regulator is on.
XIN0: external clock (1)
XIN1 stopped. XIN32 stopped
PLL0 running
All peripheral clocks activated
GPIOs on internal pull-up
JTAG unconnected with ext pull-up
TA = 25 °C
CPU is in static mode
GPIOs on internal pull-up
All peripheral clocks de-activated
DM and DP pins connected to ground
XIN0, Xin1 and XIN32 are stopped
Static
1.
Typ.
Unit
f = 12 MHz
10
mA
f = 24 MHz
18
mA
f = 36 MHz
27
mA
f = 50 MHz
34
mA
f = 60 MHz
42
mA
on Amp0
0
µA
on Amp1
<100
µA
Core frequency is generated from XIN0 using the PLL so that 140 MHz < fpll0 < 160 MHz and
10 MHz < fxin0 < 12 MHz
Table 10-12. Power Consumption by Peripheral in Active Mode
Peripheral
Typ.
GPIO
37
SMC
10
SDRAMC
4
ADC
18
EBI
31
INTC
25
TWI
14
PDCA
30
RTC
7
SPI
13
SSC
13
TC
10
USART
35
Unit
µA/MHz
54
32072C–AVR32–2010/03
AT32UC3A3/A4
10.6
System Clock Characteristics
These parameters are given in the following conditions:
• VDDCORE = 1.8V
• Ambient Temperature = 25°C
10.6.1
CPU/HSB Clock Characteristics
Table 10-13. Core Clock Waveform Parameters
Symbol
Parameter
1/(tCPCPU)
CPU Clock Frequency
tCPCPU
CPU Clock Period
10.6.2
Conditions
Min.
Typ.
Max.
Unit
66
MHz
15,15
ns
PBA Clock Characteristics
Table 10-14. PBA Clock Waveform Parameters
Symbol
Parameter
1/(tCPPBA)
PBA Clock Frequency
tCPPBA
PBA Clock Period
10.6.3
Conditions
Min.
Typ.
Max.
Unit
66
MHz
15.15
ns
PBB Clock Characteristics
Table 10-15. PBB Clock Waveform Parameters
Symbol
Parameter
1/(tCPPBB)
PBB Clock Frequency
tCPPBB
PBB Clock Period
Conditions
Min.
15.15
Typ.
Max.
Unit
66
MHz
ns
55
32072C–AVR32–2010/03
AT32UC3A3/A4
10.7
Oscillator Characteristics
The following characteristics are applicable to the operating temperature range: TA = -40°C to 85°C and worst case of
power supply, unless otherwise specified.
10.7.1
Slow Clock RC Oscillator
Table 10-16. RC Oscillator Frequency
Symbol
Parameter
Conditions
Min.
Calibration point: TA = 85°C
FRC
RC Oscillator Frequency
10.7.2
TA = 25°C
Typ.
Max.
Unit
115.2
116
KHz
112
KHz
KHz
TA = -40°C
105
108
Conditions
Min.
Typ.
32 KHz Oscillator
Table 10-17. 32 KHz Oscillator Characteristics
Symbol
Parameter
1/(tCP32KHz)
Oscillator Frequency
CL
Equivalent Load Capacitance
ESR
Crystal Equivalent Series Resistance
External clock on XIN32
Crystal
Max.
Unit
30
MHz
32 768
6
(1)
CL = 6pF
CL = 12.5pF(1)
Hz
12.5
pF
100
KΩ
600
1200
ms
tST
Startup Time
tCH
XIN32 Clock High Half-period
0.4 tCP
0.6 tCP
tCL
XIN32 Clock Low Half-period
0.4 tCP
0.6 tCP
CIN
XIN32 Input Capacitance
IOSC
Current Consumption
Note:
5
pF
Active mode
1.8
µA
Standby mode
0.1
µA
1. CL is the equivalent load capacitance.
56
32072C–AVR32–2010/03
AT32UC3A3/A4
10.7.3
Main Oscillators
Table 10-18. Main Oscillators Characteristics
Symbol
Parameter
1/(tCPMAIN)
Oscillator Frequency
CL1, CL2
Internal Load Capacitance (CL1 = CL2)
ESR
Crystal Equivalent Series Resistance
Conditions
Min.
Typ.
External clock on XIN
Crystal
0.4
Max.
Unit
50
MHz
20
MHz
7
Duty Cycle
40
50
pF
75
Ω
60
%
f = 400 KHz
f = 8 MHz
f = 16 MHz
f = 20 MHz
tST
Startup Time
tCH
XIN Clock High Half-period
0.4 tCP
0.6 tCP
tCL
XIN Clock Low Half-period
0.4 tCP
0.6 tCP
CIN
XIN Input Capacitance
IOSC
10.7.4
ms
7
pF
Active mode at 400 KHz. Gain = G0
30
µA
Active mode at 8 MHz. Gain = G1
45
µA
Active mode at 16 MHz. Gain = G2
95
µA
Active mode at 20 MHz. Gain = G3
205
µA
Current Consumption
Phase Lock Loop
Table 10-19. PLL Characteristics
Symbol
Parameter
FOUT
VCO Output Frequency
FIN
Input Frequency (after input divider)
IPLL
Current Consumption
Conditions
Min.
Typ.
Max.
Unit
80
240
MHz
4
16
MHz
Active mode (Fout=80 MHz)
250
µA
Active mode (Fout=240 MHz)
600
µA
57
32072C–AVR32–2010/03
AT32UC3A3/A4
10.8
ADC Characteristics
Table 10-20. Channel Conversion Time and ADC Clock
Parameter
Conditions
ADC Clock Frequency
Startup Time
Max.
Unit
10-bit resolution mode
5
MHz
8-bit resolution mode
8
MHz
Return from Idle Mode
20
µs
Track and Hold Acquisition Time
Min.
Typ.
600
ns
ADC Clock = 5 MHz
Conversion Time
Throughput Rate
2
µs
ADC Clock = 8 MHz
1.25
µs
ADC Clock = 5 MHz
384 (1)
kSPS
ADC Clock = 8 MHz
533 (2)
kSPS
1. Corresponds to 13 clock cycles: 3 clock cycles for track and hold acquisition time and 10 clock cycles for conversion.
2. Corresponds to 15 clock cycles: 5 clock cycles for track and hold acquisition time and 10 clock cycles for conversion.
Table 10-21. ADC Power Consumption
Parameter
Current Consumption on VDDANA
Conditions
(1)
Min.
Typ.
On 13 samples with ADC clock = 5 MHz
Max.
Unit
1.25
mA
Max.
Unit
VDDANA
V
1
µA
1. Including internal reference input current
Table 10-22. Analog Inputs
Parameter
Conditions
Input Voltage Range
Min.
Typ.
0
Input Leakage Current
Input Capacitance
7
pF
Table 10-23. Transfer Characteristics in 8-bit mode
Parameter
Conditions
Min.
Resolution
Absolute Accuracy
Integral Non-linearity
Differential Non-linearity
Typ.
Max.
8
Unit
Bit
ADC Clock = 5 MHz
0.8
LSB
ADC Clock = 8 MHz
1.5
LSB
ADC Clock = 5 MHz
0.35
0.5
LSB
ADC Clock = 8 MHz
0.5
1.0
LSB
ADC Clock = 5 MHz
0.3
0.5
LSB
ADC Clock = 8 MHz
0.5
1.0
LSB
Offset Error
ADC Clock = 5 MHz
-0.5
0.5
LSB
Gain Error
ADC Clock = 5 MHz
-0.5
0.5
LSB
Max.
Unit
Table 10-24. Transfer Characteristics in 10-bit mode
Parameter
Conditions
Resolution
Min.
Typ.
10
Absolute Accuracy
ADC Clock = 5 MHz
Integral Non-linearity
ADC Clock = 5 MHz
1.5
Bit
3
LSB
2
LSB
58
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 10-24. Transfer Characteristics in 10-bit mode
Parameter
Differential Non-linearity
Conditions
Min.
ADC Clock = 5 MHz
ADC Clock = 2.5 MHz
Typ.
Max.
Unit
1
2
LSB
0.6
1
LSB
Offset Error
ADC Clock = 5 MHz
-2
2
LSB
Gain Error
ADC Clock = 5 MHz
-2
2
LSB
59
32072C–AVR32–2010/03
AT32UC3A3/A4
10.9
USB Transceiver Characteristics
10.9.1
Electrical Characteristics
Table 10-25. Electrical Parameters
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
TBD
V
Input Levels
VIL
Low Level
VIH
High Level
VDI
Differential Input Sensivity
VCM
Differential Input Common Mode
Range
CIN
Transceiver capacitance
Capacitance to ground on each line
I
Hi-Z State Data Line Leakage
0V < VIN < 3.3V
VOL
Low Level Output
VOH
High Level Output
VCRS
Output Signal Crossover Voltage
|(D+) - (D-)|
TBD
V
TBD
V
TBD
TBD
V
TBD
pF
TBD
TBD
µA
Measured with RL of 1.425 kΩ tied to
3.6V
TBD
TBD
V
Measured with RL of 14.25 kΩ tied to
GND
TBD
TBD
V
TBD
TBD
V
Output Levels
Filtering
REXT
Recommended External USB Series
Resistor
In series with each USB pin with
±5%
RBIAS
VBIAS External Resistor
±1%
CBIAS
VBIAS External Capcitor
10.9.2
39
Ω
6810
Ω
10
pF
Switching Characteristics
Table 10-26. In Low Speed
Symbol
Parameter
Conditions
Min.
tFR
Transition Rise Time
CLOAD = 400 pF
tFE
Transition Fall Time
tFRFM
Rise/Fall time Matching
Typ.
Max.
Unit
TBD
TBD
ns
CLOAD = 400 pF
TBD
TBD
ns
CLOAD = 400 pF
TBD
TBD
%
Max.
Unit
Table 10-27. In Full Speed
Symbol
Parameter
Conditions
Min.
Typ.
tFR
Transition Rise Time
CLOAD = 50 pF
TBD
TBD
ns
tFE
Transition Fall Time
CLOAD = 50 pF
TBD
TBD
ns
tFRFM
Rise/Fall time Matching
TBD
TBD
%
60
32072C–AVR32–2010/03
AT32UC3A3/A4
10.9.3
Static Power Consumption
Table 10-28. Static Power Consumption
Symbol
Parameter
IBIAS
IVDDUTMI
10.9.4
Max.
Unit
Bias current consumption on VBG
1
µA
HS Transceiver and I/O current
consumption
8
µA
3
µA
Typ.
Max.
Unit
0.7
0.8
mA
FS/HS Transceiver and I/O current
consumption
Conditions
Min.
Typ.
If cable is connected, add 200µA
(typical) due to Pull-up/Pull-down
current consumption
Dynamic Power Consumption
Table 10-29. Dynamic Power Consumption
Symbol
Parameter
IBIAS
Bias current consumption on VBG
IVDDUTMI
1.
41.2.1
Conditions
Min.
HS Transceiver current consumption
HS transmission
47
60
mA
HS Transceiver current consumption
HS reception
18
27
mA
FS/HS Transceiver current
consumption
FS transmission 0m cable (1)
4
6
mA
FS/HS Transceiver current
consumption
FS transmission 5m cable
26
30
mA
FS/HS Transceiver current
consumption
FS reception
3
4.5
mA
Including 1 mA due to Pull-up/Pull-down current consumption.
USB High Speed Design Guidelines
In order to facilitate hardware design, Atmel provides an application note on www.atmel.com.
61
32072C–AVR32–2010/03
AT32UC3A3/A4
10.10 EBI Timings
These timings are given for worst case process, T = 85⋅C, VDDCORE = 1.65V, VDDIO = 3V and 40 pF load capacitance.
10.10.1
SMC Signals
Table 10-30. SMC Clock Signal
Symbol
Parameter
Max.(1)
Unit
1/(tCPSMC)
SMC Controller Clock Frequency
1/(tcpcpu)
MHz
Note:
1. The maximum frequency of the SMC interface is the same as the max frequency for the HSB.
Table 10-31. SMC Read Signals with Hold Settings
Symbol
Parameter
Min.
Unit
12
ns
0
ns
nrd hold length * tCPSMC - 1.3
ns
nrd hold length * tCPSMC - 1.3
ns
nrd hold length * tCPSMC - 1.3
ns
nrd hold length * tCPSMC - 1.3
ns
(nrd hold length - ncs rd hold length) * tCPSMC - 2.3
ns
nrd pulse length * tCPSMC - 1.4
ns
NRD Controlled (READ_MODE = 1)
SMC1
Data Setup before NRD High
SMC2
Data Hold after NRD High
(1)
SMC3
NRD High to NBS0/A0 Change
SMC4
NRD High to NBS1 Change(1)
SMC5
NRD High to NBS2/A1 Change(1)
SMC7
(1)
NRD High to A2 - A23 Change
SMC8
NRD High to NCS Inactive
SMC9
NRD Pulse Width
(1)
NRD Controlled (READ_MODE = 0)
SMC10
Data Setup before NCS High
SMC11
Data Hold after NCS High
SMC12
NCS High to NBS0/A0 Change(1)
SMC13
(1)
(1)
SMC14
NCS High to NBS0/A0 Change
NCS High to NBS2/A1 Change
(1)
SMC16
NCS High to A2 - A23 Change
SMC17
NCS High to NRD Inactive(1)
SMC18
NCS Pulse Width
Note:
11.5
ns
0
ns
ncs rd hold length * tCPSMC - 2.3
ns
ncs rd hold length * tCPSMC - 2.3
ns
ncs rd hold length * tCPSMC - 2.3
ns
ncs rd hold length * tCPSMC - 4
ns
ncs rd hold length - nrd hold length)* tCPSMC - 1.3
ns
ncs rd pulse length * tCPSMC - 3.6
ns
1. hold length = total cycle duration - setup duration - pulse duration. “hold length” is for “ncs rd hold length” or “nrd hold length”.
62
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 10-32. SMC Read Signals with no Hold Settings
Symbol
Parameter
Min.
Unit
13.7
ns
1
ns
13.3
ns
0
ns
Min.
Unit
NRD Controlled (READ_MODE = 1)
SMC19
Data Setup before NRD High
SMC20
Data Hold after NRD High
NRD Controlled (READ_MODE = 0)
SMC21
Data Setup before NCS High
SMC22
Data Hold after NCS High
Table 10-33. SMC Write Signals with Hold Settings
Symbol
Parameter
NRD Controlled (READ_MODE = 1)
SMC23
Data Out Valid before NWE High
(nwe pulse length - 1) * tCPSMC - 0.9
ns
SMC24
Data Out Valid after NWE High(1)
nwe hold length * tCPSMC - 6
ns
nwe hold length * tCPSMC - 1.9
ns
nwe hold length * tCPSMC - 1.9
ns
nwe hold length * tCPSMC - 1.9
ns
nwe hold length * tCPSMC - 1.7
ns
(nwe hold length - ncs wr hold length)* tCPSMC - 2.9
ns
nwe pulse length * tCPSMC - 0.9
ns
NWE High to NBS0/A0 Change
SMC25
NWE High to NBS1 Change
SMC26
(1)
(1)
(1)
SMC29
NWE High to A1 Change
SMC31
NWE High to A2 - A23 Change(1)
SMC32
NWE High to NCS Inactive
SMC33
NWE Pulse Width
(1)
NRD Controlled (READ_MODE = 0)
SMC34
Data Out Valid before NCS High
(ncs wr pulse length - 1)* tCPSMC - 4.6
ns
SMC35
Data Out Valid after NCS High(1)
ncs wr hold length * tCPSMC - 5.8
ns
(ncs wr hold length - nwe hold length)* tCPSMC - 0.6
ns
(1)
NCS High to NWE Inactive
SMC36
Note:
1. hold length = total cycle duration - setup duration - pulse duration. “hold length” is for “ncs wr hold length” or “nwe hold
length"
Table 10-34. SMC Write Signals with No Hold Settings (NWE Controlled only)
Symbol
Parameter
Min.
Unit
SMC37
NWE Rising to A2-A25 Valid
5.4
ns
SMC38
NWE Rising to NBS0/A0 Valid
5
ns
SMC39
NWE Rising to NBS1 Change
5
ns
SMC40
NWE Rising to A1/NBS2 Change
5
ns
SMC41
NWE Rising to NBS3 Change
5
ns
SMC42
NWE Rising to NCS Rising
5.1
ns
63
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 10-34. SMC Write Signals with No Hold Settings (NWE Controlled only)
Symbol
Parameter
SMC43
Data Out Valid before NWE Rising
SMC44
Data Out Valid after NWE Rising
SMC45
NWE Pulse Width
Min.
Unit
(nwe pulse length - 1) * tCPSMC - 1.2
ns
5
ns
nwe pulse length * tCPSMC - 0.9
ns
Figure 10-5. SMC Signals for NCS Controlled Accesses.
SMC16
SMC16
SMC16
SMC12
SMC13
SMC14
SMC15
SMC12
SMC13
SMC14
SMC15
A2-A25
SMC12
SMC13
SMC14
SMC15
A0/A1/NBS[3:0]
NRD
SMC17
SMC17
NCS
SMC21
SMC18
SMC18
SMC18
SMC22
SMC10
SMC11
SMC34
SMC35
D0 - D15
SMC36
NWE
64
32072C–AVR32–2010/03
AT32UC3A3/A4
Figure 10-6. SMC Signals for NRD and NRW Controlled Accesses.
SMC37
SMC7
SMC7
SMC31
A2-A25
SMC25
SMC26
SMC29
SMC30
SMC3
SMC4
SMC5
SMC6
SMC38
SMC39
SMC40
SMC41
SMC3
SMC4
SMC5
SMC6
A0/A1/NBS[3:0]
SMC42
SMC32
SMC8
NCS
SMC8
SMC9
SMC9
NRD
SMC19
SMC20
SMC43
SMC44
SMC1
SMC23
SMC2
SMC24
D0 - D15
SMC33
SMC45
NWE
10.10.2
SDRAM Signals
These timings are given for 10 pF load on SDCK and 40 pF on other signals.
Table 10-35. SDRAM Clock Signal.
Symbol
Parameter
1/(tCPSDCK)
SDRAM Controller Clock Frequency
Note:
Conditions
Min.
Max.(1)
Unit
1/(tcpcpu)
MHz
Max.
Unit
1. The maximum frequency of the SDRAMC interface is the same as the max frequency for the HSB.
Table 10-36. SDRAM Clock Signal
Symbol
Parameter
Conditions
Min.
SDRAMC1
SDCKE High before SDCK Rising Edge
7.4
ns
SDRAMC2
SDCKE Low after SDCK Rising Edge
3.2
ns
SDRAMC3
SDCKE Low before SDCK Rising Edge
7
ns
SDRAMC4
SDCKE High after SDCK Rising Edge
2.9
ns
SDRAMC5
SDCS Low before SDCK Rising Edge
7.5
ns
SDRAMC6
SDCS High after SDCK Rising Edge
1.6
ns
SDRAMC7
RAS Low before SDCK Rising Edge
7.2
ns
SDRAMC8
RAS High after SDCK Rising Edge
2.3
ns
SDRAMC9
SDA10 Change before SDCK Rising Edge
7.6
ns
SDRAMC10
SDA10 Change after SDCK Rising Edge
1.9
ns
SDRAMC11
Address Change before SDCK Rising Edge
6.2
ns
SDRAMC12
Address Change after SDCK Rising Edge
2.2
ns
65
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 10-36. SDRAM Clock Signal
Symbol
Parameter
Conditions
Min.
Max.
Unit
SDRAMC13
Bank Change before SDCK Rising Edge
6.3
ns
SDRAMC14
Bank Change after SDCK Rising Edge
2.4
ns
SDRAMC15
CAS Low before SDCK Rising Edge
7.4
ns
SDRAMC16
CAS High after SDCK Rising Edge
1.9
ns
SDRAMC17
DQM Change before SDCK Rising Edge
6.4
ns
SDRAMC18
DQM Change after SDCK Rising Edge
2.2
ns
SDRAMC19
D0-D15 in Setup before SDCK Rising Edge
9
ns
SDRAMC20
D0-D15 in Hold after SDCK Rising Edge
0
ns
SDRAMC23
SDWE Low before SDCK Rising Edge
7.6
ns
SDRAMC24
SDWE High after SDCK Rising Edge
1.8
ns
SDRAMC25
D0-D15 Out Valid before SDCK Rising Edge
7.1
ns
SDRAMC26
D0-D15 Out Valid after SDCK Rising Edge
1.5
ns
66
32072C–AVR32–2010/03
AT32UC3A3/A4
Figure 10-7. SDRAMC Signals relative to SDCK.
SDCK
SDRAMC1
SDRAMC2
SDRAMC3
SDRAMC4
SDCKE
SDRAMC5
SDRAMC6
SDRAMC7
SDRAMC8
SDRAMC5
SDRAMC6
SDRAMC5
SDRAMC6
SDCS
RAS
SDRAMC15 SDRAMC16
SDRAMC15 SDRAMC16
CAS
SDRAMC23 SDRAMC24
SDWE
SDRAMC9 SDRAMC10
SDRAMC9 SDRAMC10
SDRAMC9 SDRAMC10
SDRAMC11 SDRAMC12
SDRAMC11 SDRAMC12
SDRAMC11 SDRAMC12
SDRAMC13 SDRAMC14
SDRAMC13 SDRAMC14
SDRAMC13 SDRAMC14
SDRAMC17 SDRAMC18
SDRAMC17 SDRAMC18
SDA10
A0 - A9,
A11 - A13
BA0/BA1
DQM0 DQM3
SDRAMC19 SDRAMC20
D0 - D15
Read
SDRAMC25 SDRAMC26
D0 - D15
to Write
67
32072C–AVR32–2010/03
AT32UC3A3/A4
10.11 JTAG Characteristics
10.11.1
JTAG Interface Signals
Table 10-37. JTAG Interface Timing Specification
Conditions (1)
Symbol
Parameter
Min.
Max.
JTAG0
TCK Low Half-period
6
ns
JTAG1
TCK High Half-period
3
ns
JTAG2
TCK Period
9
ns
JTAG3
TDI, TMS Setup before TCK High
1
ns
JTAG4
TDI, TMS Hold after TCK High
0
ns
JTAG5
TDO Hold Time
4
ns
JTAG6
TCK Low to TDO Valid
JTAG7
Device Inputs Setup Time
ns
JTAG8
Device Inputs Hold Time
ns
JTAG9
Device Outputs Hold Time
ns
JTAG10
TCK to Device Outputs Valid
ns
6
Unit
ns
1. VVDDIO from 3.0V to 3.6V, maximum external capacitor = 40pF
68
32072C–AVR32–2010/03
AT32UC3A3/A4
Figure 10-8. JTAG Interface Signals
JTAG2
TCK
JTAG
JTAG1
0
TMS/TDI
JTAG3
JTAG4
JTAG7
JTAG8
TDO
JTAG5
JTAG6
Device
Inputs
Device
Outputs
JTAG9
JTAG10
10.12 SPI Characteristics
Figure 10-9. SPI Master mode with (CPOL= NCPHA= 0) or (CPOL= NCPHA= 1)
SPCK
SPI0
SPI1
MISO
SPI2
MOSI
69
32072C–AVR32–2010/03
AT32UC3A3/A4
Figure 10-10. SPI Master mode with (CPOL= 0 and NCPHA= 1) or (CPOL= 1 and NCPHA= 0)
SPCK
SPI3
SPI4
MISO
SPI5
MOSI
Figure 10-11. SPI Slave mode with (CPOL= 0 and NCPHA= 1) or (CPOL= 1 and NCPHA= 0)
SPCK
SPI6
MISO
SPI7
SPI8
MOSI
Figure 10-12. SPI Slave mode with (CPOL= NCPHA= 0) or (CPOL= NCPHA= 1)
SPCK
SPI9
MISO
SPI10
SPI11
MOSI
70
32072C–AVR32–2010/03
AT32UC3A3/A4
Table 10-38. SPI Timings
Symbol
Parameter
Conditions (1)
SPI0
MISO Setup time before SPCK rises
(master)
3.3V domain
22 +
(tCPMCK)/2 (2)
ns
SPI1
MISO Hold time after SPCK rises
(master)
3.3V domain
0
ns
SPI2
SPCK rising to MOSI Delay
(master)
3.3V domain
SPI3
MISO Setup time before SPCK falls
(master)
3.3V domain
22 +
(tCPMCK)/2 (3)
ns
SPI4
MISO Hold time after SPCK falls
(master)
3.3V domain
0
ns
SPI5
SPCK falling to MOSI Delay
master)
3.3V domain
7
ns
SPI6
SPCK falling to MISO Delay
(slave)
3.3V domain
26.5
ns
SPI7
MOSI Setup time before SPCK rises
(slave)
3.3V domain
0
ns
SPI8
MOSI Hold time after SPCK rises
(slave)
3.3V domain
1.5
ns
SPI9
SPCK rising to MISO Delay
(slave)
3.3V domain
SPI10
MOSI Setup time before SPCK falls
(slave)
3.3V domain
0
ns
SPI11
MOSI Hold time after SPCK falls
(slave)
3.3V domain
1
ns
Min.
Max.
7
27
Unit
ns
ns
1. 3.3V domain: VVDDIO from 3.0V to 3.6V, maximum external capacitor = 40 pF
2. tCPMCK: Master Clock period in ns.
3. tCPMCK: Master Clock period in ns.
10.13 MCI
The High Speed MultiMedia Card Interface (MCI) supports the MultiMedia Card (MMC) Specification V4.2, the SD Memory Card Specification V2.0, the SDIO V1.1 specification and CE-ATA
V1.1.
71
32072C–AVR32–2010/03
AT32UC3A3/A4
10.14 Flash Memory Characteristics
The following table gives the device maximum operating frequency depending on the field FWS
of the Flash FSR register. This field defines the number of wait states required to access the
Flash Memory. Flash operating frequency equals the CPU/HSB frequency.
Table 10-39. Flash Operating Frequency
Symbol
Parameter
FFOP
Flash Operating Frequency
Conditions
Min.
Typ.
Max.
Unit
FWS = 0
36
MHz
FWS = 1
66
MHz
Max.
Unit
Table 10-40. Parts Programming Time
Symbol
Parameter
Conditions
Min.
Typ.
TFPP
Page Programming Time
4
ms
TFFP
Fuse Programming Time
0.5
ms
TFCE
Chip erase Time
8
ms
Table 10-41. Flash Parameters
Symbol
Parameter
NFARRAY
Conditions
Min.
Typ.
Max.
Unit
Flash Array Write/Erase cycle
100K
cycle
NFFUSE
General Purpose Fuses write cycle
1000
cycle
TFDR
Flash Data Retention Time
15
year
72
32072C–AVR32–2010/03
AT32UC3A3/A4
11. Mechanical Characteristics
11.1
11.1.1
Thermal Considerations
Thermal Data
Table 11-1 summarizes the thermal resistance data depending on the package.
Table 11-1.
11.1.2
Thermal Resistance Data
Symbol
Parameter
Condition
Package
Typ
θJA
Junction-to-ambient thermal resistance
Still Air
TQFP144
40.3
θJC
Junction-to-case thermal resistance
TQFP144
9.5
θJA
Junction-to-ambient thermal resistance
TFBGA144
28.5
θJC
Junction-to-case thermal resistance
TFBGA144
6.9
θJA
Junction-to-ambient thermal resistance
VFBGA100
31.1
θJC
Junction-to-case thermal resistance
VFBGA100
6.9
Still Air
Still Air
Unit
°C/W
°C/W
°C/W
Junction Temperature
The average chip-junction temperature, TJ, in °C can be obtained from the following:
1.
T J = T A + ( P D × θ JA )
2.
T J = T A + ( P D × ( θ HEATSINK + θ JC ) )
where:
• θJA = package thermal resistance, Junction-to-ambient (°C/W), provided in Table 11-1 on
page 73.
• θJC = package thermal resistance, Junction-to-case thermal resistance (°C/W), provided in
Table 11-1 on page 73.
• θHEAT SINK = cooling device thermal resistance (°C/W), provided in the device datasheet.
• PD = device power consumption (W) estimated from data provided in the section ”Regulator
characteristics” on page 49.
• TA = ambient temperature (°C).
From the first equation, the user can derive the estimated lifetime of the chip and decide if a
cooling device is necessary or not. If a cooling device is to be fitted on the chip, the second
equation should be used to compute the resulting average chip-junction temperature TJ in °C.
73
32072C–AVR32–2010/03
AT32UC3A3/A4
11.2
Package Drawings
Figure 11-1. TFBGA 144 package drawing
74
32072C–AVR32–2010/03
AT32UC3A3/A4
Figure 11-2. LQFP-144 package drawing
Table 11-2.
Device and Package Maximum Weight
1300
Table 11-3.
mg
Package Characteristics
Moisture Sensitivity Level
Table 11-4.
MSL3
Package Reference
JEDEC Drawing Reference
MS-026
JESD97 Classification
E3
75
32072C–AVR32–2010/03
AT32UC3A3/A4
Figure 11-3. VFBGA-100 package drawing
76
32072C–AVR32–2010/03
AT32UC3A3/A4
11.3
Soldering Profile
Table 11-5 gives the recommended soldering profile from J-STD-20.
Table 11-5.
Soldering Profile
Profile Feature
Green Package
Average Ramp-up Rate (217°C to Peak)
3°C/Second max
Preheat Temperature 175°C ±25°C
150-200°C
Time Maintained Above 217°C
60-150 seconds
Time within 5°C of Actual Peak Temperature
30 seconds
Peak Temperature Range
260 (+0/-5°C)
Ramp-down Rate
6°C/Second max.
Time 25°C to Peak Temperature
8 minutes max
Note:
It is recommended to apply a soldering temperature higher than 250°C.
A maximum of three reflow passes is allowed per component.
77
32072C–AVR32–2010/03
AT32UC3A3/A4
12. Ordering Information
Device
AT32UC3A3256S
AT32UC3A3256
AT32UC3A3128S
AT32UC3A3128
AT32UC3A364S
AT32UC3A364
AT32UC3A4256S
AT32UC3A4256
AT32UC3A4128S
AT32UC3A4128
AT32UC3A464S
AT32UC3A464
Ordering Code
Package
Conditioning
Temperature Operating
Range
AT32UC3A3256S-ALUT
144-lead LQFP
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A3256S-ALUR
144-lead LQFP
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A3256S-CTUT
144-ball TFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A3256S-CTUR
144-ball TFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A3256-ALUT
144-lead LQFP
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A3256-ALUR
144-lead LQFP
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A3256-CTUT
144-ball TFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A3256-CTUR
144-ball TFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A3128S-ALUT
144-lead LQFP
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A3128S-ALUR
144-lead LQFP
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A3128S-CTUT
144-ball TFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A3128S-CTUR
144-ball TFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A3128-ALUT
144-lead LQFP
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A3128-ALUR
144-lead LQFP
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A3128-CTUT
144-ball TFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A3128-CTUR
144-ball TFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A364S-ALUT
144-lead LQFP
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A364S-ALUR
144-lead LQFP
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A364S-CTUT
144-ball TFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A364S-CTUR
144-ball TFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A364-ALUT
144-lead LQFP
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A364-ALUR
144-lead LQFP
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A364-CTUT
144-ball TFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A364-CTUR
144-ball TFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A4256S-C1UT
100-ball VFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A4256S-C1UR
100-ball VFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A4256-C1UT
100-ball VFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A4256-C1UR
100-ball VFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A4128S-C1UT
100-ball VFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A4128S-C1UR
100-ball VFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A4128-C1UT
100-ball VFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A4128-C1UR
100-ball VFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A464S-C1UT
100-ball VFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A464S-C1UR
100-ball VFBGA
Reels
Industrial (-40⋅C to 85⋅C)
AT32UC3A464-C1UT
100-ball VFBGA
Tray
Industrial (-40⋅C to 85⋅C)
AT32UC3A464-C1UR
100-ball VFBGA
Reels
Industrial (-40⋅C to 85⋅C)
78
32072C–AVR32–2010/03
AT32UC3A3/A4
13. Errata
13.1
13.1.1
Rev. G
Processor and Architecture
1. LDM instruction with PC in the register list and without ++ increments Rp
For LDM with PC in the register list: the instruction behaves as if the ++ field is always set, ie
the pointer is always updated. This happens even if the ++ field is cleared. Specifically, the
increment of the pointer is done in parallel with the testing of R12.
Fix/Workaround
None.
2. Hardware breakpoints on MAC instructions may corrupt the destination registerof the
MAC instruction.
Fix/Workaround
Place breakpoints on earlier or later instructions.
3. When the main clock is RCSYS, TIMER_CLOCK5 is equal to PBA clock
When the main clock is generated from RCSYS, TIMER_CLOCK5 is equal to PBA Clock
and not PBA Clock / 128.
Fix/workaround
None.
4. Clock sources will not be stopped in STATIC sleep mode if the difference between
CPU and PBx division factor is too big.
If the division factor between the CPU/HSB and PBx frequencies is more than 4 when going
to a sleep mode where the system RC oscillator is turned off, then high speed clock sources
will not be turned off. This will result in a significantly higher power consumption during the
sleep mode.
Fix/Workaround
Before going to sleep modes where the system RC oscillator is stopped, make sure that the
factor between the CPU/HSB and PBx frequencies is less than or equal to 4.
13.1.2
MPU
1. Privilege violation when using interrupts in application mode with protected system
stack
If the system stack is protected by the MPU and an interrupt occurs in application mode, an
MPU DTLB exception will occur.
Fix/Workaround
Make a DTLB Protection (Write) exception handler which permits the interrupt request to be
handled in privileged mode.
13.1.3
ADC
1. Sleep Mode activation needs additional A to D conversion
If the ADC sleep mode is activated when the ADC is idle the ADC will not enter sleep mode
before after the next AD conversion.
Fix/Workaround
Activate the sleep mode in the mode register and then perform an AD conversion.
79
32072C–AVR32–2010/03
AT32UC3A3/A4
13.1.4
USART
1. The NER register always returns zero.
Fix/Workaround
None
13.1.5
SPI
1. SPI Disable does not work in Slave mode
Fix/workaround
Read the last received data then perform a Software reset.
2. SPI Bad Serial Clock Generation on 2nd chip_select when SCBR = 1, CPOL=1 and
NCPHA=0
When multiple CS are in use, if one of the baudrate equals to 1 and one of the others doesn't
equal to 1, and CPOL=1 and CPHA=0, then an additional pulse will be generated on SCK.
Fix/workaround
When multiple CS are in use, if one of the baudrate equals 1, the other must also equal 1 if
CPOL=1 and CPHA=0.
3. SPI RDR.PCS is not correct
The PCS (Peripheral Chip Select) field in the SPI RDR (Receive Data Register) does not
correctly indicate the value on the NPCS pins at the end of a transfer.
Fix/Workaround
Do not use the PCS field of the SPI RDR.
4. SPI data transfer hangs with CSAAT=1 in CSR0 and MODFDIS=0 in MR
When CSAAT=1 in CSR0 and mode fault detection is enabled (MODFDIS=0 in MR), the
SPI module will not start a data transfer.
Fix/Workaround
Disable mode fault detection by writing a one to MODFDIS in MR.
5. Disabling SPI has no effect on the TDRE flag
Disabling SPI has no effect on TDRE whereas the write data command is filtered when SPI
is disabled. This means that as soon as the SPI is disabled it becomes impossible to reset
the TDRE flag by writing in the TDR. So if the SPI is disabled during a PDCA transfer, the
PDCA will continue to write data in the TDR (as TDRE stays high) until its buffer is empty,
and all data written after the disable command is lost.
Fix/Workaround
Disable the PDCA, 2 NOP (minimum), disable SPI. When you want to continue the transfer:
Enable SPI, enable PDCA.
13.1.6
PDCA
1. PCONTROL.CHxRES is nonfunctional
PCONTROL.CHxRES is nonfunctional. Counters are reset at power-on, and cannot be
reset by software.
Fix/Workaround
Software needs to keep history of performance counters.
2. Transfer error will stall a transmit peripheral handshake interface.
If a tranfer error is encountered on a channel transmitting to a peripheral, the peripheral
handshake of the active channel will stall and the PDCA will not do any more transfers on
the affected peripheral handshake interface.
80
32072C–AVR32–2010/03
AT32UC3A3/A4
Fix/workaround:
Disable and then enable the peripheral after the transfer error.
13.1.7
AES
1. URAD (Unspecified Register Access Detection Status) does not detect read accesses
to the write-only KEYW[5..8]R registers
Fix/Workaround
None.
13.1.8
HMATRIX
1. In the HMATRIX PRAS and PRBS registers MxPR fields are only two bits
In the HMATRIX PRAS and PRBS registers MxPR fields are only two bits wide, instead of
four bits. The unused bits are undefined when reading the registers.
Fix/Workaround
Mask undefined bits when reading PRAS and PRBS.
13.1.9
TWIM
1. TWIM SR.IDLE goes high immediately when NAK is received
When a NAK is received and there is a non-zero number of bytes to be transmitted,
SR.IDLE goes high immediately and does not wait for the STOP condition to be sent. This
does not cause any problem just by itself, but can cause a problem if software waits for
SR.IDLE to go high and then immediately disables the TWIM by writing a one to CR.MDIS.
Disabling the TWIM causes the TWCK and TWD pins to go high immediately, so the STOP
condition will not be transmitted correctly.
Fix/Workaround
If possible, do not disable the TWIM. If it is absolutely necessary to disable the TWIM, there
must be a software delay of at least two TWCK periods between the detection of
SR.IDLE==1 and the disabling of the TWIM.
13.2
13.2.1
Rev. E
General
1. 3.3V supply monitor is not available on revE.
3.3V supply monitor is not available on revE.
Fix/workaround
None.
2. Service access bus (SAB) can not access DMACA registers.
Workaround
None.
3. Increased Power Consumption in VDDIO in sleep modes.
If the OSC0 is enabled in crystal mode when entering a sleep mode where the OSC0 is disabled, this will lead to an increased power consumption in VDDIO.
Workaround
Disable OSC0 manually through the Power Manager (PM) before going to any sleep modes
where the OSC0 is disabled automatically, or pull down or up XIN0 or XOUT0 with 1Mohm
resistor.
81
32072C–AVR32–2010/03
AT32UC3A3/A4
4. When the main clock is RCSYS, TIMER_CLOCK5 is equal to PBA clock
When the main clock is generated from RCSYS, TIMER_CLOCK5 is equal to PBA Clock
and not PBA Clock / 128.
Fix/workaround
None.
5. Clock sources will not be stopped in STATIC sleep mode if the difference between
CPU and PBx division factor is too big.
If the division factor between the CPU/HSB and PBx frequencies is more than 4 when going
to a sleep mode where the system RC oscillator is turned off, then high speed clock sources
will not be turned off. This will result in a significantly higher power consumption during the
sleep mode.
Fix/Workaround
Before going to sleep modes where the system RC oscillator is stopped, make sure that the
factor between the CPU/HSB and PBx frequencies is less than or equal to 4.
6. Increased Power Consumption in VDDIN in sleep modes
Increased Power Consumption in VDDIN in sleep modes.
Fix/Workaround
Set to 1b bit CORRS4 of the the ECCHRS mode register (MD). In C-code: *((volatile int*)
(0xFFFE2404))= 0x400;
13.2.2
Processor and Architecture
1. LDM instruction with PC in the register list and without ++ increments Rp
For LDM with PC in the register list: the instruction behaves as if the ++ field is always set, ie
the pointer is always updated. This happens even if the ++ field is cleared. Specifically, the
increment of the pointer is done in parallel with the testing of R12.
Fix/Workaround
None.
2. Hardware breakpoints on MAC instructions may corrupt the destination registerof the
MAC instruction.
Fix/Workaround
Place breakpoints on earlier or later instructions.
13.2.3
MPU
1. Privilege violation when using interrupts in application mode with protected system
stack
If the system stack is protected by the MPU and an interrupt occurs in application mode, an
MPU DTLB exception will occur.
Fix/Workaround
Make a DTLB Protection (Write) exception handler which permits the interrupt request to be
handled in privileged mode.
13.2.4
ADC
1. Sleep Mode activation needs additional A to D conversion
If the ADC sleep mode is activated when the ADC is idle the ADC will not enter sleep mode
before after the next AD conversion.
Fix/Workaround
82
32072C–AVR32–2010/03
AT32UC3A3/A4
Activate the sleep mode in the mode register and then perform an AD conversion.
13.2.5
SPI
1. SPI Bad Serial Clock Generation on 2nd chip_select when SCBR = 1, CPOL=1 and
NCPHA=0
When multiple CS are in use, if one of the baudrate equals to 1 and one of the others doesn't
equal to 1, and CPOL=1 and CPHA=0, then an additional pulse will be generated on SCK.
Fix/workaround
When multiple CS are in use, if one of the baudrate equals 1, the other must
also equal 1 if CPOL=1 and CPHA=0.
2. SPI Disable does not work in Slave mode
Fix/workaround
Read the last received data then perform a Software reset.
3. SPI RDR.PCS is not correct
The PCS (Peripheral Chip Select) field in the SPI RDR (Receive Data Register) does not
correctly indicate the value on the NPCS pins at the end of a transfer.
Fix/Workaround
Do not use the PCS field of the SPI RDR.
4. SPI data transfer hangs with CSAAT=1 in CSR0 and MODFDIS=0 in MR
When CSAAT=1 in CSR0 and mode fault detection is enabled (MODFDIS=0 in MR), the
SPI module will not start a data transfer.
Fix/Workaround
Disable mode fault detection by writing a one to MODFDIS in MR.
5. Disabling SPI has no effect on the TDRE flag
Disabling SPI has no effect on TDRE whereas the write data command is filtered when SPI
is disabled. This means that as soon as the SPI is disabled it becomes impossible to reset
the TDRE flag by writing in the TDR. So if the SPI is disabled during a PDCA transfer, the
PDCA will continue to write data in the TDR (as TDRE stays high) until its buffer is empty,
and all data written after the disable command is lost.
Fix/Workaround
Disable the PDCA, 2 NOP (minimum), disable SPI. When you want to continue the transfer:
Enable SPI, enable PDCA.
13.2.6
USART
1. The NER register always returns zero.
Fix/Workaround
None.
2. USART - RTS output signal does not function properly in hardware handshaking
mode
The RTS signal is not generated properly when the USART receives data in hardware handshaking mode. When the Peripheral DMA receive buffer becomes full, the RTS output
should go high, but it will stay low.
Fix/Workaround
Do not use the hardware handshaking mode of the USART. If it is necessary to drive the
RTS output high when the Peripheral DMA receive buffer becomes full, use the normal
mode of the USART. Configure the Peripheral DMA Controller to signal an interrupt when
the receive buffer is full. In the interrupt handler code, write a one to the RTSDIS bit in the
83
32072C–AVR32–2010/03
AT32UC3A3/A4
USART Control Register (CR). This will drive the RTS output high. After the next DMA transfer is started and a receive buffer is available, write a one to the RTSEN bit in the USART
CR so that RTS will be driven low.
3. USART in ISO7816 mode Only in T1: RX impossible after any TX
Fix/workaround
Reset the TX transceiver by setting RSTTX field in CR register, then configure MR register
and CR register.
13.2.7
PDCA
1. PCONTROL.CHxRES is nonfunctional
PCONTROL.CHxRES is nonfunctional. Counters are reset at power-on, and cannot be
reset by software.
Fix/Workaround
Software needs to keep history of performance counters.
2. Transfer error will stall a transmit peripheral handshake interface.
If a tranfer error is encountered on a channel transmitting to a peripheral, the peripheral
handshake of the active channel will stall and the PDCA will not do any more transfers on
the affected peripheral handshake interface.
Fix/workaround:
Disable and then enable the peripheral after the transfer error.
13.2.8
AES
1. URAD (Unspecified Register Access Detection Status) does not detect read accesses
to the write-only KEYW[5..8]R registers
Fix/Workaround
None.
13.2.9
HMATRIX
1. In the HMATRIX PRAS and PRBS registers MxPR fields are only two bits
In the HMATRIX PRAS and PRBS registers MxPR fields are only two bits wide, instead of
four bits. The unused bits are undefined when reading the registers.
Fix/Workaround
Mask undefined bits when reading PRAS and PRBS.
13.2.10
TWIM
1. TWIM SR.IDLE goes high immediately when NAK is received
When a NAK is received and there is a non-zero number of bytes to be transmitted,
SR.IDLE goes high immediately and does not wait for the STOP condition to be sent. This
does not cause any problem just by itself, but can cause a problem if software waits for
SR.IDLE to go high and then immediately disables the TWIM by writing a one to CR.MDIS.
Disabling the TWIM causes the TWCK and TWD pins to go high immediately, so the STOP
condition will not be transmitted correctly.
Fix/Workaround
If possible, do not disable the TWIM. If it is absolutely necessary to disable the TWIM, there
must be a software delay of at least two TWCK periods between the detection of
SR.IDLE==1 and the disabling of the TWIM.
84
32072C–AVR32–2010/03
AT32UC3A3/A4
13.2.11
MCI
1. The busy signal of the responses R1b is not taken in account (excepting for CMD12
STOP_TRANSFER).
It is not possible to know the busy status of the card during the response (R1b) for the commands CMD7, CMD28, CMD29, CMD38, CMD42, CMD56.
Fix/Workaround
The card busy line should be polled through the GPIO pin for commands CMD7, CMD28,
CMD29, CMD38, CMD42 and CMD56. The GPIO alternate configuration should be restored
after.
13.3
13.3.1
Rev. D
General
1. 3.3V supply monitor is not available on revE.
Flash register FGPFRLO[30:29] (FGPFRLO GP29,GP30 and GP31) are reserved and must
not be used.
Fix/workaround
None.
2. Service access bus (SAB) can not access DMACA registers.
Workaround
None.
13.3.2
Processor and Architecture
1. LDM instruction with PC in the register list and without ++ increments Rp
For LDM with PC in the register list: the instruction behaves as if the ++ field is always set, ie
the pointer is always updated. This happens even if the ++ field is cleared. Specifically, the
increment of the pointer is done in parallel with the testing of R12.
Fix/Workaround
None.
2. RETE instruction does not clear SREG[L] from interrupts.
The RETE instruction clears SREG[L] as expected from exceptions.
Fix/Workaround
When using the STCOND instruction, clear SREG[L] in the stacked value of SR before
returning from interrupts with RETE.
3. Exceptions when system stack is protected by MPU
RETS behaves incorrectly when MPU is enabled and MPU is configured so that
system stack is not readable in unprivileged mode.
Fix/Workaround
Workaround 1: Make system stack readable in unprivileged mode,
or
Workaround 2: Return from supervisor mode using rete instead of rets. This requires :
1. Changing the mode bits from 001b to 110b before issuing the instruction.
Updating the mode bits to the desired value must be done using a single mtsr instruction so
it is done atomically. Even if this step is described in general as not safe in the UC technical
reference guide, it is safe in this very specific case.
2. Execute the RETE instruction.
4. Multiply instructions do not work on RevD.
85
32072C–AVR32–2010/03
AT32UC3A3/A4
All the multiply instructions do not work.
Fix/Workaround
Do not use the multiply instructions.
5. Hardware breakpoints on MAC instructions may corrupt the destination registerof the
MAC instruction.
Fix/Workaround
Place breakpoints on earlier or later instructions.
13.3.3
MPU
1. Privilege violation when using interrupts in application mode with protected system
stack
If the system stack is protected by the MPU and an interrupt occurs in application mode, an
MPU DTLB exception will occur.
Fix/Workaround
Make a DTLB Protection (Write) exception handler which permits the interrupt request to be
handled in privileged mode.
13.3.4
ADC
1. Sleep Mode activation needs additional A to D conversion
If the ADC sleep mode is activated when the ADC is idle the ADC will not enter sleep mode
before after the next AD conversion.
Fix/Workaround
Activate the sleep mode in the mode register and then perform an AD conversion.
13.3.5
SPI
1. SPI Bad Serial Clock Generation on 2nd chip_select when SCBR = 1, CPOL=1 and
NCPHA=0
When multiple CS are in use, if one of the baudrate equals to 1 and one of the others doesn't
equal to 1, and CPOL=1 and CPHA=0, then an additional pulse will be generated on SCK.
Fix/workaround
When multiple CS are in use, if one of the baudrate equals 1, the other must
also equal 1 if CPOL=1 and CPHA=0.
2. SPI Disable does not work in Slave mode
Fix/workaround
Read the last received data then perform a Software reset.
13.3.6
TWI
1. TWIM Version Register is zero
TWIM Version Register (VR) is zero instead of 0x100.
Fix/Workaround
None.
13.3.7
USART
1. The NER register always returns zero.
Fix/Workaround:
None.
86
32072C–AVR32–2010/03
AT32UC3A3/A4
2. USART - RTS output signal does not function properly in hardware handshaking
mode
The RTS signal is not generated properly when the USART receives data in hardware handshaking mode. When the Peripheral DMA receive buffer becomes full, the RTS output
should go high, but it will stay low.
Fix/Workaround
Do not use the hardware handshaking mode of the USART. If it is necessary to drive the
RTS output high when the Peripheral DMA receive buffer becomes full, use the normal
mode of the USART. Configure the Peripheral DMA Controller to signal an interrupt when
the receive buffer is full. In the interrupt handler code, write a one to the RTSDIS bit in the
USART Control Register (CR). This will drive the RTS output high. After the next DMA transfer is started and a receive buffer is available, write a one to the RTSEN bit in the USART
CR so that RTS will be driven low.
3. USART in ISO7816 mode Only in T1: RX impossible after any TX
Fix/workaround
Reset the TX transceiver by setting RSTTX field in CR register, then configure MR register
and CR register.
13.3.8
PDCA
1. PCONTROL.CHxRES is nonfunctional
PCONTROL.CHxRES is nonfunctional. Counters are reset at power-on, and cannot be
reset by software.
Fix/Workaround
Software needs to keep history of performance counters.
13.3.9
AES
1. URAD (Unspecified Register Access Detection Status) does not detect read accesses
to the write-only KEYW[5..8]R registers
Fix/Workaround
None.
87
32072C–AVR32–2010/03
AT32UC3A3/A4
14. Datasheet Revision History
Please note that the referring page numbers in this section are referred to this document. The
referring revision in this section are referring to the document revision.
14.1
14.2
14.3
Rev. C – 03/10
1.
Updated the datasheet with new revision G features.
1.
Updated the datasheet with new device AT32UC3A4.
1.
Initial revision.
Rev. B – 08/09
Rev. A – 03/09
88
32072C–AVR32–2010/03
AT32UC3A3/A4
1
Description ............................................................................................... 3
2
Blockdiagram ........................................................................................... 4
2.1
Processor and Architecture ...............................................................................5
3
Signals Description ................................................................................. 6
4
Package and Pinout ............................................................................... 11
5
6
7
8
9
4.1
Package ...........................................................................................................11
4.2
Peripheral Multiplexing on I/O lines .................................................................14
4.3
Signal Descriptions ..........................................................................................18
4.4
I/O Line Considerations ...................................................................................23
4.5
Power Considerations .....................................................................................24
Power Considerations ........................................................................... 25
5.1
Power Supplies ................................................................................................25
5.2
Voltage Regulator ............................................................................................25
I/O Line Considerations ......................................................................... 26
6.1
JTAG Pins .......................................................................................................26
6.2
RESET_N Pin ..................................................................................................26
6.3
TWI Pins ..........................................................................................................26
6.4
GPIO Pins ........................................................................................................26
Memories ................................................................................................ 27
7.1
Embedded Memories ......................................................................................27
7.2
Physical Memory Map .....................................................................................27
7.3
Peripheral Address Map ..................................................................................28
7.4
CPU Local Bus Mapping .................................................................................30
Peripherals ............................................................................................. 32
8.1
Clock Connections ...........................................................................................32
8.2
Peripheral Multiplexing on I/O lines .................................................................32
8.3
Oscillator Pinout ..............................................................................................35
8.4
Peripheral overview .........................................................................................37
Boot Sequence ....................................................................................... 46
9.1
Starting of Clocks ............................................................................................46
9.2
Fetching of Initial Instructions ..........................................................................46
10 Electrical Characteristics ...................................................................... 47
10.1
Absolute Maximum Ratings* ...........................................................................47
89
32072C–AVR32–2010/03
AT32UC3A3/A4
10.2
DC Characteristics ...........................................................................................47
10.3
Regulator characteristics .................................................................................49
10.4
Analog characteristics .....................................................................................49
10.5
Power Consumption ........................................................................................53
10.6
System Clock Characteristics ..........................................................................55
10.7
Oscillator Characteristics .................................................................................56
10.8
ADC Characteristics ........................................................................................58
10.9
USB Transceiver Characteristics .....................................................................60
10.10
EBI Timings .....................................................................................................62
10.11
JTAG Characteristics .......................................................................................68
10.12
SPI Characteristics ..........................................................................................69
10.13
MCI ..................................................................................................................71
10.14
Flash Memory Characteristics .........................................................................72
11 Mechanical Characteristics ................................................................... 73
11.1
Thermal Considerations ..................................................................................73
11.2
Package Drawings ...........................................................................................74
11.3
Soldering Profile ..............................................................................................77
12 Ordering Information ............................................................................. 78
13 Errata ....................................................................................................... 79
13.1
Rev. G .............................................................................................................79
13.2
Rev. E ..............................................................................................................81
13.3
Rev. D ..............................................................................................................85
14 Datasheet Revision History .................................................................. 88
14.1
Rev. C – 03/10 .................................................................................................88
14.2
Rev. B – 08/09 .................................................................................................88
14.3
Rev. A – 03/09 .................................................................................................88
90
32072C–AVR32–2010/03