TMP92CH21FG Datasheet, PDF (9/540 Pages) Toshiba Semiconductor – CMOS 32-Bit Microcontroller

TMP92CH21
2.3 Pin Names and Functions
The following table shows the names and functions of the input/output pins
Table 2.3.1 Pin Names and Functions (1/5)
Number of
Pin Name
I/O
Pins
Function
D0 to D7
8
I/O Data: Data bus 0 to 7
P10 to P17
8
D8 to D15
I/O Port 1: I/O port input or output specifiable in units of bits
I/O Data: Data bus 8 to 15
P20 to P27
I/O Port 2: I/O port input or output specifiable in units of bits
D16 to D23
8
I/O Data: Data bus 16 to 23
KO0 to KO7
Output Key output 0 to 7: Pins used of key-scan strobe (Open-drain output programmable)
P30 to P37
8
D24 to D31
I/O Port 3: I/O port input or output specifiable in units of bits
I/O Data24: Data bus 24 to 31
P40 to P47
A0 to A7
Output Port 4: Output port
8
Output Address: Address bus 0 to 7
P50 to P57
A8 to A15
Output Port 5: Output port
8
Output Address: Address bus 8 to 15
P60 to P67
A16 to A23
I/O Port 6: I/O port input or output specifiable in units of bits
8
Output Address: Address bus 16 to 23
P70
Output Port70: Output port
1
RD
Output Read: Outputs strobe signal to read external memory
P71
I/O Port 71: I/O port
WRLL
1
Output Write: Output strobe signal for writing data on pins D0 to D7
NDRE
Output NAND flash read: Outputs strobe signal to read external NAND flash
P72
I/O Port 72: I/O port
WRLU
1
Output Write: Output strobe signal for writing data on pins D8 to D15
NDWE
Output Write Enable for NAND flash
P73
EA24
Output Port 73: Output port
1
Output Extended Address 24
P74
EA25
Output Port 74: Output port
1
Output Extended Address 25
P75
I/O Port 75: I/O port
R/ W
1
Output Read/Write: 1 represents read or dummy cycle; 0 represents write cycle
NDR/B
Input NAND flash ready (1)/Busy (0) input
P76
WAIT
I/O Port 76: I/O port
1
Input Wait: Signal used to request CPU bus wait
92CH21-7
2007-02-28