HD6433644R datasheet(202/549 Pages) RENESAS

202 / 549 page

Section 8 I/O Ports

Rev. 6.00 Sep 12, 2006 page 182 of 526

REJ09B0326-0600

PMR3 is an 8-bit read/write register, controlling the selection of pin functions for port 3 pins.

Upon reset, PMR3 is initialized to H'00.

Bits 7 to 3



 Reserved Bits: Bits 7 to 3 are reserved: they are always read as 0 and cannot be

modified.

Bit 2



 P32/SO1 Pin Function Switch (SO1): This bit selects whether pin P32/SO1 is used as P32

or as SO1.

Bit 2: SO1

Description

Functions as P32 I/O pin

(initial value)

Functions as SO1 output pin

Bit 1



 P31/SI1 Pin Function Switch (SI1): This bit selects whether pin P31/SI1 is used as P31 or

as SI1.

Bit 1: SI1

Description

Functions as P31 I/O pin

(initial value)

Functions as SI1 input pin

Bit 0



 P30/SCK1 Pin Function Switch (SCK1): This bit selects whether pin P30/SCK1 is used

as P30 or as SCK1.

Bit 0: SCK1

Description

Functions as P30 I/O pin

(initial value)

Functions as SCK1 I/O pin

Port Mode Register 7 (PMR7)

Bit



TXD



POF1

Initial value

Read/Write



R/W



R/W

PMR7 is an 8-bit read/write register that turns the PMOS transistors of pins and P32/SO1 on and

off.

Upon reset, PMR7 is initialized to H'F8.

HD6433644R Datasheet(PDF) 202 Page - Renesas Technology Corp

HD6433644R Datasheet(HTML) 202 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL