MB91155 datasheet(9/105 Pages) FUJITSU

9 / 105 page

MB91F155A/MB91155/MB91154

(Continued)

Pin No.

Pin name

Circuit

type

Function

105

PI2/SCK2/TO2

UART2 clock I/O, Reload timer 2 output

When UART2 clock output is not allowed, reload timer 2 can be output by

allowing it.

This pin is available as a port when neither UART2 clock output nor reload

timer output is allowed.

106

PI1/SOT2

UART2 data output

This function is enabled when UART2 data output is allowed.

This pin is available as a port when UART2 clock output is not allowed.

107

PI0/SIN2

UART2 data input

Since this input is used more or less continuously while UART2 is en-

gaged in input operations, output by the port needs to be stopped except

when it is performed deliberately.

This pin is available as a port when UART2 data input is not in use.

108

PH5/SCK1/TO1

UART1 clock I/O, Reload timer 1 output

When UART1 clock output is not allowed, reload timer 1 can be output by

allowing it.

This pin is available as a port when neither UART1 clock output nor reload

timer output is allowed.

109

PH4/SOT1

UART1 data output

This function is enabled when UART1 data output is allowed.

This pin is available as a port when UART1 clock output is not allowed.

110

PH3/SIN1

UART1 data input

Since this input is used more or less continuously while UART1 is en-

gaged in input operations, output by the port needs to be stopped except

when it is performed deliberately.

This pin is available as a port when UART1 data input is not in use.

111

PH2/SCK0/TO0

UART0 clock I/O, Reload timer 0 output

When UART0 clock output is not allowed, reload timer 0 can be output by

allowing it.

This pin is available as a port when neither UART0 clock output nor reload

timer output is allowed.

112

PH1/SOT0

UART0 data output

This function is enabled when UART0 data output is allowed.

This pin is available as a port when UART0 clock output is not allowed.

113

PH0/SIN0

UART0 data input

Since this input is used more or less continuously while UART0 is en-

gaged in input operations, output by the port needs to be stopped except

when it is performed deliberately.

This pin is available as a port when UART0 data input is not in use.

114

DREQ0/PL0

DMA external transfer request input

Since this input is used more or less continuously when selected as a

DMAC transfer factor, output by the port needs to be stopped except when

it is performed deliberately.

This pin is available as a port when DMA external transfer request input is

not in use.

MB91155 Datasheet(PDF) 9 Page - fujitsu semiconductor

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