M32CSLASH86 datasheet(408/505 Pages) RENESAS

408 / 505 page

Page 385

24. Programmable I/O Ports

)

(

Figure 24.19 PCR Register and IPS Register

Function

Port Control Register(1)

Nothing is assigned. When write, set to "0".

When read, its content is indeterminate.

Bit Name

Bit

Symbol

Address

After Reset

PCR

03FF16

XXXX XXX02

PCR0

(b2 - b1)

(b7 - b3)

Port P1 Control

Bit

0 : CMOS output

1 : N-channel open drain output(2)

NOTES:

1. Set the PCR0 bit to "0" when P1 operates as a data bus in memory expansion mode and

microprocessor mode. When using the ports as I/O ports, CMOS port or N-channel open drain output

port can be selected.

M32C/86T cannot be used in memory expansion mode and microprocessor mode.

2. This function is designed not to make port P1 a full open drain but to turn off the P channel in the

CMOS port.

Absolute maximum rating of the input voltage is between -0.3V and VCC + 0.3V.

Reserved Bit

Set to "0"

Input Function Select Register

Symbol

Address

After Reset

IPS

017816

0016

Bit Name

Function

Bit

Symbol

IPS0

IPS1

Communication Unit 0

Input Pin Select Bit 0

Assigns each function of ISCLK0 and

ISRxD0 to the following ports.

0 : P77, P80

1 : P151, P152

Assigns each function of INPC10,

INPC11/ISCLK1, INPC12/ISRxD1/BE1IN,

INPC13, INPC14, INPC15, INPC16 and

INPC17 to the following ports.

0 : P73, P74, P75, P76, P77, P81, P70, P71

1 : P110, P111, P112, P113, P140, P141,

P142, P143

Communication Unit 1

Input Pin Select Bit 1

IPS2

0 : Except AN15(1)

1 : AN15

Port P15 Input Peripheral

Function Select Bit

IPS3

(b7 - b4)

0 : P77

1 : P83

CAN0IN Function

Pin Select Bit

NOTES:

1. Although AN150 to AN157 can be used when the IPS2 bit is set to "0", power consumption may

increase.

Reserved Bit

Set to "0"

0000

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