TMP89FS60 datasheet(129/410 Pages) TOSHIBA

129 / 410 page

Page 115

TMP89FS60

RA005

8.3.8

Port P9 (P94 to P90)

Port P9 is a 5-bit input/output port that can be set to input or output for each bit individually, and it is also

used as the serial interface and the UART.

The output circuit has the P-channel output control function and either the sink open drain output or the C-

MOS output can be selected. Port P9 contains a programmable pull-up resistor on the VDD side. This pull-up

resistor can be used when the port is used in the input mode or as a sink open drain output.

When this port is used as the serial interface or the UART, setting for the serial interface selecting function is

also needed. For details, refer to "8.4 Serial Interface Selecting Function".

Figure 8-10 Port P9

Table 8-18 Port P9

P94

P93

P92

P91

P90

Secondary

function

RXD2

TXD2

SCLK1

SI1

RXD1

SO1

TXD1

Output latch

(for each bit)

P9DR write

P9i

RIN3

Note1 : R = 100

Ω (typ.)

Note2 : RIN3 = 50k

Ω (typ.)

Note3 : i = 0 to 4

SCLK1, SO1, TXD1, TXD2

SCLK1, SI1, RXD1, RXD2

P9PRD read

Function control

(for each bit)

Input/output control

(for each bit)

P9FC write

P9CR write

Output control

(for each bit)

P9OUTCR write

Programmable

pull-up resistor

VDD

Pull-up control

(for each bit)

P9PU write

SIO1

UART1

UART2

Peripheral

functions

SYSCR1<STOP>

SYSCR1<OUTEN>

Reset signal

TMP89FS60 Datasheet(PDF) 129 Page - Toshiba Semiconductor

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