H838024 datasheet(239/697 Pages) RENESAS

239 / 697 page

Section 8 I/O Ports

Rev. 7.00 Mar 10, 2005 page 197 of 652

REJ09B0042-0700

Port Pull-Up Control Register 1 (PUCR1)

Bit

PUCR17 PUCR16*

—

PUCR14 PUCR13

——

—

Initial value

—

Read/Write

R/W

PUCR1 controls whether the MOS pull-up of each of the port 1 pins P17, P16*, P14, and P13 is on

or off. When a PCR1 bit is cleared to 0, setting the corresponding PUCR1 bit to 1 turns on the

MOS pull-up for the corresponding pin, while clearing the bit to 0 turns off the MOS pull-up.

Note: * Pin 16 and the associated function are not implemented on the H8/38124 Group.

The register is both readable and writeable.

Port Mode Register 1 (PMR1)

Bit

IRQ3

—

IRQ4

TMIG

—

Initial value

—

Read/Write

R/W

—

R/W

—

PMR1 is an 8-bit read/write register, controlling the selection of pin functions for port 1 pins.

Bit 7—P17/

IRQ

3/TMIF Pin Function Switch (IRQ3)

This bit selects whether pin P17/

IRQ

3/TMIF is used as P17 or as

IRQ

3/TMIF.

Bit 7

IRQ3

Description

Functions as P17 I/O pin

(initial value)

Functions as

IRQ

3/TMIF input pin

Note:

Rising or falling edge sensing can be designated for

IRQ

3, TMIF. For details on TMIF

settings, see 3. Timer Control Register F (TCRF) in section 9.4.2.

Bit 6—Reserved

This bit is reserved; it is always read as 1 and cannot be modified.

Bit 5—Reserved

This bit is reserved; it can only be written with 0.

H838024 Datasheet(PDF) 239 Page - Renesas Technology Corp

H838024 Datasheet(HTML) 239 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