Table of Contents
Advertisement
2.2
Pin Names and Functions
The following tables show the names and functions of the input/output pins.
Number
Pin Names
of Pins
D0 to D7
8
P10 to P17
8
D8 to D15
P40 to P47
8
A0 to A7
P50 to P57
8
A8 to A15
P60 to P67
8
A16 to A23
P70
1
RD
P71
1
WRLL
P72
1
WRLU
P73
1
P74
1
CLKOUT
P75
1
R/
W
P76
1
WAIT
P80
1
CS0
P81
1
CS1
P82
1
CS2
P83
1
CS3
P90
1
SCK
P91
SO
1
SDA
P92
SI
1
SCL
PA0 to PA2,
4
PA7
Table 2.2.1 Pin Names and Functions (1/2)
I/O
I/O
Data (Lower): Data bus D0 to D7.
I/O
Port 1: I/O port that allows I/O to be selected at the bit level.
(when used to the external 8-bit bus.)
I/O
Data: Data bus D8 to D15.
I/O
Port 4: I/O port.
Output
Address: Address bus A0 to A7.
I/O
Port 5: I/O port.
Output
Address: Address bus A8 to A15.
I/O
Port 6: I/O port.
Output
Address: Address bus A16 to A23.
Output
Port 70: Output port.
Output
Read: Strobe signal for reading external memory.
Output
Port 71: Output port.
Output
Write: Strobe signal for writing data to pins D0 to D7.
Output
Port 72: Output port.
Output
Write: Strobe signal for writing data to pins D8 to D15.
Output
Port 73: Output port.
Output
Port 74: Output port.
Output
Clock: Output system clock.
Output
Port 75: Output port.
Output
Read/write: This port is 1 when read and dummy cycle. This port is 0 when write cycle.
I/O
Port 76: I/O port.
Input
Wait: Pin used to request bus wait to CPU.
Output
Port 80: Output port.
Output
Chip select 0: Outputs 0 when address is within specified address area.
Output
Port 81: Output port.
Output
Chip select 1: Outputs 0 when address is within specified address area.
Output
Port 82: Output port.
Output
Chip select 2: Outputs 0 when address is within specified address area.
Output
Port 83: Output port.
Output
Chip select 3: Outputs 0 when address is within specified address area.
I/O
Port 90: I/O port.
I/O
Serial bus interface clock I/O data at SIO mode.
I/O
Port 91: I/O port.
Output
Serial bus interface send data at SIO mode.
I/O
Serial bus interface send/receive data at I
(Open-drain output mode by programmable.)
I/O
Port 92: I/O port.
Input
Serial bus interface receive data at SIO mode.
I/O
Serial bus interface clock I/O data at I
(Open-drain output mode by programmable.)
Input
Port A0 to A2, A7: Input port (with pull-up resistor).
92CM22-5
Functions
2
C mode.
2
C mode.
TMP92CM22
2007-02-16
Advertisement
Table of Contents
