H8SSLASH2218 datasheet(312/750 Pages) RENESAS

312 / 750 page

Section 8 I/O Ports

Rev.6.00 Jun. 03, 2008 Page 264 of 698

REJ09B0074-0600

8.11.4

Clock Output Control Register (OUTCR)

OUTCR specifies the clock frequency output from the PF7 pin.

Bit

Bit Name

Initial Value

R/W

Description

7 to

⎯

Undefined

⎯

Reserved

The write value should always be 0.

PF7OUT2

PF7OUT1

PF7OUT0

R/W

PF7 Pin Output Select 2 to 0

000: Main oscillation clock

001: Outputs 1/2 of main oscillation clock

010: Outputs 1/3 of main oscillation clock

011: Outputs 1/4 of main oscillation clock

1xx: Reserved

This function is not supported by the E6000 emulator.

φ in section 22, Electrical Characteristics is in the case

when PF7OUT2 to PF7OUT0 = 000.

8.11.5

Pin Functions

Pin Functions of H8S/2218 Group

The port F is an 8-bit I/O port. Port F pins also function as external interrupt input (

IRQ2, IRQ3)

pins, bus control signal I/O pins, and system clock output (

φ) pins. The correspondence between

the register specification and the pin functions is shown below.

Table 8.81

PF7 Pin Function

PF7DDR

PF7OUT2 to PF7OUT0

⎯

B'000

B'001

B'010

B'011

Pin Function

PF7 input pin

φ output pin φ/2 output pin φ/3 output pin φ/4 output pin

Table 8.82

PF6 Pin Function

Operating Mode

Modes 4 to 6

Mode 7

PF6DDR

⎯

Pin Function

AS output pin

PF6 input pin

PF6 output pin

H8S/2218 数据表(PDF) 312 Page - Renesas Technology Corp

H8S/2218 数据表(HTML) 312 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