TMP93CS41 datasheet(75/248 Pages) TOSHIBA

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TMP93CS40/TMP93CS41

2004-02-10

93CS40-73

3.5.8

Port 7 (P70 to P73)

Port 7 is a 4-bit general-purpose I/O port. I/O can be set on a bit basis. Resetting sets port

7 as an input port and connects a pull-up resistor. In addition to functioning as a

general-purpose I/O port, port 70 also functions as an input clock pin TI0; port 71 as an

8-bit timer output (TO1), port 72 as a PWM0 output (TO2), and port 73 as a PWM1 output

(TO3) pin. Writing 1 in the corresponding bit of the port 7 function register (P7FC) enables

output of the timer. Resetting resets the function register P7CR, P7FC value to 0, and sets

all bits to input ports.

Figure 3.5.16 Port 7

Direction control

(on bit basis)

Reset

P7CR write

P71 to P73

(TO1 to TO3)

P7 write

P7 read

Selector

Function control

(on bit basis)

P7FC write

Selector

P-ch

Programmable

pull up

Output latch

Timer F/F out

TO1: Timer 1

TO2: Timer 2

TO3: Timer 3

Programmable

pull up

P-ch

Reset

Output latch

P7 write

P7 read

Direction control

(on bit basis)

P7CR write

Selector

TI0

P70

(TI0)

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