UPD6133GS 查看數據表（PDF） - NEC => Renesas Technology

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UPD6133GS

4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION

NEC => Renesas Technology 

µPD6133, 6134

3. PORT REGISTERS (PX)

The KI/O port, the KI port, the special ports (S0, S1/LED), and the control register are treated as port registers.

At reset, port register values are shown below.

Figure 3-1. Port Register Organization

KI/O7

KI3

0

0

Port Register

At Reset

P0

FFH

P10

P00

KI/O6

KI/O5

KI/O4

KI/O3

P1

KI/O2

KI/O1

KI/O0

× FHNote

P11

P01

KI2

KI1

KI0

S1/LED

S0

1

1

P3 (Control register 0)

03H

P13

P03

0

DP9

DP8

TCTL CARY MOD1 MOD0

P4 (Control register 1)

26H

P14

P04

0

KI

S0/S1

pull-down pull-down

0

S1/LEDmode KI/O mode S0 mode

Note ×: Refers to the value based on the KI pin state.

Table 3-1. Relationship between Ports and their Read/Write

Port Name

KI/O

KI

S0

S1/LED

INPUT Mode

Read

Write

Pin state

Output latch

Pin state

—

Pin state

—

Pin state

—

OUTPUT Mode

Read

Write

Output latch Output latch

—

—

Note

—

Pin state

—

Note When in OFF mode, “1” is normally read.

14

Data Sheet U10454EJ6V0DS00

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