M37160MF datasheet(107/131 Pages) RENESAS

107 / 131 page

Rev.1.01

2003.11.13

page 107 of 130

M37160M8/MA/MF-XXXSP/FP,M37160EFSP/FP

Address 00C316

Address 00C616

Port P1 direction register

b7 b6 b5 b4 b3 b2 b1 b0

Fix this bit to "0"

Note: When using P10 as a general-purpose port, set the Clock Control Register 3

(address 021216) bit 7 to 1.

When using P10 as a clock control signal, refer to 8.14.1 oscillation control.

P10 becomes clock control signal output and H output setting immediately

after reset release , and P16 becomes L output setting after reset release.

Port P1 direction register

Port P1 direction register (D1) [Address 00C316]

Name

Functions

After reset R W

0 : Port P10 input mode (note)

1 : Port P10 output mode

0 : Port P11 input mode

1 : Port P11 output mode

0 : Port P12 input mode

1 : Port P12 output mode

0 : Port P13 input mode

1 : Port P13 output mode

0 : Port P14 input mode

1 : Port P14 output mode

0 : Port P15 input mode

1 : Port P15 output mode

0 : Port P16 input mode

1 : Port P16 output mode

Port P3 register (P3)

[Address 00C616]

Port P3 register

Indeterminate

b7 b6 b5 b4 b3 b2 b1 b0

Nothing is assigned. This bit is write disable bit.

When this bit is read out, the value is "0."

–

(BSEL20)

(See note)

SCL3/P31-SCL1/P11

SDA3/P30-SDA1/P13

Course connection control bit

(BSEL21)

Notes • For the ports used as the Multi-master I

2C-BUS interface, set their direction registers to 1.

• To use SCL3 and SDA3, set the I

2C Control Register (address 00F916) bits 6–7 to 0.

Name

Functions

After reset

R W

Port P30 data

Port P31 data

Switch bit of I

2C-BUS

interface and port P3

Port P30, Port P31

1: I

2CBUS (SDA3,SCL3)

0: Connection

1: Cutting

Port P3 register

Indeterminate

–

Port P35 data

Port P36 data

Indeterminate

–

Port P37data

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