SM5K3 查看數據表（PDF） - Sharp Electronics

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SM5K3

4-Bit Single-Chip Microcomputers (Controllers With 10-Bit A/D Converter)

Sharp Electronics 

SM5K3/SM5K4/SM5K5

Output Latch Register and Mode Register

The SM5K3/5K4/5K5 contain 6 output-latch

registers and 8 mode-registers which either latch

contents of output ports or control some functions

of the SM5K3/5K4/5K5.

These registers, their functions and available

transfer instructions are shown in Table 1 below.

An output latch register sets the output level of the

pin to which it is connected.

Refer to the section of “MODE REGISTERS”

concerning about the details mode registers.

Table 1 Output Latch Registers and Mode Registers

SYMBOL

P0

P1

FUNCTION

Output register

Input register

OUT INL OUT IN/TPB ANP/ORP

O

–

O

–

O

–

O

–

O

–

P2

I/O register (independent)

–

–

O

O

O

P3

Input register (and analog input)

–

–

–

O

–

R3

Control register

–

–

O

–

–

P4

I/O register

P5

I/O register

–

–

O

O

O

–

–

O

O

O

R8∗ A/D data/control register

R9∗ A/D data register

RA∗ Timer/counter register

RB∗ Timer/modulo register

RC

Timer control register

–

–

O

O

–

–

–

O

O

–

–

–

O

O

–

–

–

O

O

–

–

–

O

O

–

RE

Interrupt mask register

RF

P2 directional register

∗ 8-bit register

–

–

O

O

–

–

–

O

O

–

NOTE :

Bit 4 (R84) in the R8 register is read only.

(Read or write operation of this bit does not affect any other operation.)

CONTENT OF BL

0

1

2

3

3

4

5

8

9

A

B

C

E

F

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