AT91M40400-25C ATMEL Corporation, AT91M40400-25C Datasheet - Page 52

• Manufacturer Part Number: AT91M40400-25C
• Description: 16/32-bit Microcontroller, 2.7V to 3.6V Operating Range
• Manufacturer: ATMEL Corporation

Table 7. Multiplexed Parallel I/Os
Note:
Number
52
Bit
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
0
1
2
3
4
5
6
7
8
9
PIO Controller
1.
(1)
Bit number refers to the data bit which corresponds to this signal in each of the User Interface registers.
Port Name
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
P30
P31
P0
P1
P2
P3
P4
P5
P6
P7
P8
P9
AT91M40400
Port Name
A20/CS7
A21/CS6
A22/CS5
A23/CS4
TCLK0
TCLK1
TCLK2
TIOA0
TIOB0
TIOA1
TIOB1
TIOA2
TIOB2
MCKO
SCK0
RXD0
SCK1
RXD1
NCS2
NCS3
TXD0
TXD1
IRQ0
IRQ1
IRQ2
FIQ
–
–
–
–
–
–
Signal Description
Timer 0 Clock signal
Timer 0 Signal A
Timer 0 Signal B
Timer 1 Clock signal
Timer 1 Signal A
Timer 1 Signal B
Timer 2 Clock signal
Timer 2 Signal A
Timer 2 Signal B
External Interrupt 0
External Interrupt 1
External Interrupt 2
Fast Interrupt
USART 0 clock signal
USART 0 transmit data signal
USART 0 receive data signal
–
–
–
–
USART 1 clock signal
USART 1 transmit data signal
USART 1 receive data signal
–
–
Master Clock Output
Chip Select 2
Chip Select 3
Address 20/Chip Select 7
Address 21/Chip Select 6
Address 22/Chip Select 5
Address 23/Chip Select 4
Peripheral
Signal Direction
input
bi-directional
bi-directional
input
bi-directional
bi-directional
input
bi-directional
bi-directional
input
input
input
input
bi-directional
output
input
–
–
–
–
bi-directional
output
input
–
–
output
output
output
output
output
output
output
Reset State
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
PIO Input
MCKO
NCS2
NCS3
A20
A21
A22
A23
Number
100
Pin
49
50
51
54
55
56
57
58
59
60
63
64
66
67
68
69
70
71
72
73
74
75
76
83
84
85
99
25
26
29
30