H8SSLASH2218 datasheet(316/750 Pages) RENESAS

316 / 750 page

Section 8 I/O Ports

Rev.6.00 Jun. 03, 2008 Page 268 of 698

REJ09B0074-0600

8.12.1

Port G Data Direction Register (PGDDR)

PGDDR specifies input or output for the pins of the port G.

Since PGDDR is a write-only register, the bit manipulation instructions must not be used to write

PGDDR. For details, see section 2.9.4, Accessing Registers Containing Write-Only Bits.

Bit

Bit Name

Initial Value

R/W

Description

7 to

⎯

Undefined

⎯

Reserved

These bits are undefined and cannot be modified.

PG4DDR*

PG3DDR*

PG2DDR*

PG1DDR

0/1*

(H8S/2218 Group)

Modes 4 to 6:

Setting a PGDDR bit to 1 makes the PG4 to PG1 pins bus

control signal output pins, while clearing the bit to 0

makes the pins input ports.

Mode 7:

Setting a PGDDR bit to 1 makes the corresponding port G

pin an output port, while clearing the bit to 0 makes the

pin an input port.

(H8S/2212 Group)

Setting a PG1DDR bit to 1 makes the corresponding port

G pin an output port, while clearing the bit to 0 makes the

pin an input port.

PG0DDR*

3 0

(H8S/2212 Group)

When EMLE = 1: Pin PG0 function as the H-UDI (TDI)

pin.

When EMLE = 0: If a PG0DDR bit is set to 1, pin PG0

function as output ports. If a PG0DDR bit is cleared to 0,

pin PG0 function as input ports.

Notes: 1. The initial value becomes 1 in modes 4 and 5 and 0 in modes 6 and 7.

2. Reserved in the H8S/2212 Group. If this bit is read, an undefined value will be read.

This bit cannot be modified.

3. Reserved in the H8S/2218 Group. If this bit is read, an undefined value will be read.

This bit cannot be modified.

H8S/2218 数据表(PDF) 316 Page - Renesas Technology Corp

H8S/2218 数据表(HTML) 316 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

数据表下载