Sonic Alert msm80154s, msm83c154s 204, Port 3 CPU control pin function table, Port 3 pin table

Models: msm83c154s msm85c154hvs msm80154s

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MSM80C154S/83C154S/85C154HVS

Table 5-5 Port 3 CPU control pin function table

PORT3

 

PORT 3 PIN ALTERNATE FUNCTION

 

 

 

P3.0

RXD

[SERIAL INPUT PORT]

 

 

 

P3.1

TXD

[SERIAL OUTPUT PORT]

 

 

 

P3.2

INT0

[EXTERNAL INTERRUPT 0]

 

 

 

P3.3

INT1

[EXTERNAL INTERRUPT 1]

 

 

 

P3.4

T0

[TIMER/COUNTER 0 CLOCK]

 

 

 

P3.5

T1

[TIMER/COUNTER 1 CLOCK]

HPDI [HARD POWER DOWN INPUT]

 

 

 

 

P3.6

WR

[EXTERNAL DATA MEMORY WRITE STROBE]

 

 

 

P3.7

RD

[EXTERNAL DATA MEMORY READ STROBE]

 

 

 

Table 5-6 Port 3 pin table

 

PORT3

Control

Accumulator bit

 

 

 

 

1

P3.0

RXD

ACC.0

 

 

 

 

2

P3.1

TXD

ACC.1

 

 

 

 

3

P3.2

INT0

ACC.2

 

 

 

 

4

P3.3

INT1

ACC.3

 

 

 

 

5

P3.4

T0

ACC.4

 

 

 

 

6

P3.5

T1/HDPI

ACC.5

 

 

 

 

7

P3.6

WR

ACC.6

 

 

 

 

8

P3.7

RD

ACC.7

 

 

 

 

204

Page 211
Image 211
Sonic Alert msm80154s, msm83c154s, msm85c154hvs user manual 204, Port 3 CPU control pin function table, Port 3 pin table