AT91M43300-12CI-1.8 ATMEL [ATMEL Corporation], AT91M43300-12CI-1.8 Datasheet - Page 2

• Manufacturer Part Number: AT91M43300-12CI-1.8
• Description: ARM Thumb Microcontrollers
• Manufacturer: ATMEL [ATMEL Corporation]

Pin Description
Table 1. AT91M43300 Pin Description
2
Module
EBI
AIC
Timer
USART
SPI
PIO
WD
Clock
Reset
JTAG/ICE
Power
Emulation
Name
A0 - A23
D0 - D15
CS4 - CS7
NCS0 - NCS3
NWR0
NWR1
NRD
NWE
NOE
NUB
NLB
NWAIT
BMS
IRQ0 - IRQ3
FIQ
TCLK0 - TCLK5
TIOA0 - TIOA5
TIOB0 - TIOB5
SCK0 - SCK2
TXD0 - TXD2
RXD0 - RXD2
SPCK
MISO
MOSI
NSS
NPCS0 - NPCS3
PA0 - PA29
PB0 - PB27
NWDOVF
MCKI
MCKO
NRST
JTAGSEL
TMS
TDI
TDO
TCK
NTRST
VDDIO
VDDCORE
GND
NTRI
AT91M43300
Function
Address Bus
Data Bus
Chip Select
Chip Select
Lower Byte 0 Write Signal
Lower Byte 1 Write Signal
Read Signal
Write Enable
Output Enable
Upper Byte Select (16-bit SRAM)
Lower Byte Select (16-bit SRAM)
Wait Input
Boot Mode Select
External Interrupt Request
Fast External Interrupt Request
Timer External Clock
Multi-purpose Timer I/O Pin A
Multi-purpose Timer I/O Pin B
External Serial Clock
Transmit Data Output
Receive Data Input
SPI Clock
Master In Slave Out
Master Out Slave In
Slave Select
Peripheral Chip Select
Programmable I/O Port A
Programmable I/O Port B
Watchdog Timer Overflow
Master Clock Input
Master Clock Output
Hardware Reset Input
Selects between JTAG and ICE mode
Test Mode Select
Test Data In
Test Data Out
Test Clock
Test Reset Input
I/O Power
Core Power
Ground
Tristate Mode Enable
Ground
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Power
Power
Type
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Active
Level
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Comments
All valid after reset
A23 - A20 after reset
Used in Byte Write option
Used in Byte Write option
Used in Byte Write option
Used in Byte Select option
Used in Byte Select option
Used in Byte Select option
Used in Byte Select option
Sampled during reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
Input after reset
Input after reset
Open drain
Schmitt trigger
Schmitt trigger, internal pull-up
High enables IEEE 1149.1 JTAG
boundary scan
Schmitt trigger, internal pull-up
Schmitt trigger, internal pull-up
Schmitt trigger, internal pull-up
Schmitt trigger, internal pull-up
3V or 5V nominal supply
2.0V or 3V nominal supply
Sampled during reset