TMP93CS44 datasheet(7/224 Pages) TOSHIBA

7 / 224 page

TMP93CS44/S45

2004-02-10

93CS44-5

2.2

Pin Names and Functions

The names of input/output pins and their functions are described below.

Table 2.2.1 to Table 2.2.3 show “Pin Names and Functions”.

Table 2.2.1 Pin Names and Functions (1/3)

Pin Names

Number

of Pins

I/O

Functions

I/O Port 0: I/O port that allows selection of I/O on a bit basis

P00 to P07

AD0 to AD7

3 states Address/data (Lower): Bits 0 to 7 for address/data bus

I/O Port 1: I/O port that allows selection of I/O on a bit basis

3 states Address/data (Upper): Bits 8 to 15 for address/data bus

P10 to P17

AD8 to AD15

A8 to A15

Output Address: Bits 8 to 15 for address bus

I/O Port 2: I/O port that allows selection of I/O on a bit basis

(with pull-up resistor)

Output Address: Bits 0 to 7 for address bus

P20 to P27

A0 to A7

A16 to A23

Output Address: Bits 16 to 23 for address bus

Output Port 30: Output port

P30

Output Read: Strobe signal for reading external memory

Output Port 31: Output port

P31

Output Write: Strobe signal for writing data on pins AD0 to AD7

I/O Port 32: I/O port (with pull-up resistor)

Output High write: Strobe signal for writing data on pins AD8 to AD15

P32

HWR

SCK

I/O Mode clock SBI SIO mode clock

I/O Port 33: I/O port

Output Serial send data

P33

SDA

I/O SBI I

2C bus mode channel data

I/O Port 34: I/O port

Input Serial receive data

P34

SCL

I/O SBI I

2C bus mode clock

I/O Port 35: I/O port

P35

INT0

Input Interrupt request pin 0: Interrupt request pin with programmable level/rising edge

I/O Port 40: I/O port

Input Timer input 0: Timer 0 input

P40

TI0

INT1

Input Interrupt request pin 1: Interrupt request pin with rising edge

I/O Port 41: I/O port

P41

TO3

Output Timer output 3: 8-bit timer 3 output

I/O Port 42: I/O port

Input Timer input 4: Timer 4 input

P42

TI4

INT4

Input Interrupt request pin 4: Interrupt request pin with

programmable rising/falling edge

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