TMP93CS32F datasheet(57/180 Pages) TOSHIBA

57 / 180 page

TMP93CS32

2004-02-10

93CS32-55

3.5.7

Port 6 (P60 to P65)

Port 60 to 65 is a 6-bit general-purpose I/O port. I/Os can be set on a bit basis.

Resetting sets P60 to 65 to an input port and connects a pull-up resistor.

It also sets all bits of the output latch register to 1.

In addition to functioning as a general-purpose I/O port, P60 to P65 can also share

function as an I/O for serial channels 0 and 1. Writing “1” in the corresponding bit of the

Port 6 function register (P6FC) enables this function.

Resetting sets the function register value to “0” and sets all bits to input ports.

(1) Ports 60 (TXD0) and 63 (TXD1)

Ports 60 and 63 also function as serial channel TXD output pins in addition to I/O

ports.

They have a programmable open-drain function.

Figure 3.5.14 Ports 60 and 63

Direction control

(on bit basis)

Reset

P6CR write

P6 write

P6 read

Open-drain

possible

ODE<ODE63, 60>

P60 (TXD0)

P63 (TXD1)

Function control

(on bit basis)

P6FC write

Programmable

pull up

P-ch

TXD0, TXD1

Output latch

Selector

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