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Chapter 17 Appendices
XVII - 8
Special Function Registers List
X'3F36'
X'3F37' P7DIR
X'3F38' P8DIR
X'3F3C' PAIMD
X'3F3E' P6IMD
X'3F40' P0PLU
X'3F41' P1PLU
X'3F42' P2PLU
Address
Register
P6DIR
Port 6 Key Input Interrupt Pin Setup
X'3F45' P5PLU
X'3F46' P6PLU
X'3F47' P7PLUD
X'3F48' P8PLU
X'3F4A' PAPLUD
Bit Symbol /Initial Value /Description
Port 7 I/O Direction Control
Port 8 I/O Direction Control
Port A Analog Input Selection
Port 6 I/O Direction Control
Port 0 Pull-up Control
Port 6 Pull-up Control
Port 7 Pull-up/Pull-down Control
Port 8 Pull-up Control
Port A Pull-up/Pull-down Control
X'3F4D' DLYCTR
Bit 7
P7DIR7
P8DIR7
P6DIR7
-
IRQ4SEL
IRQ4 Interrupt
Source
Selection
-
-
-
-
P6PLU7
P7PLUD7
P8PLU7
-
BUZOE
Buzzer Output
Enable
Bit 6
P7DIR6
P8DIR6
P6DIR6
PAIMD6
-
P0PLU6
-
-
P6PLU6
P7PLUD6
P8PLU6
PAPLUD6
-
BUZS2
Bit 5
P7DIR5
P8DIR5
P6DIR5
PAIMD5
-
P0PLU5
-
-
P6PLU5
P7PLUD5
P8PLU5
PAPLUD5
-
BUZS1
Buzzer Output Frequency Selection
Bit 4
P7DIR4
P8DIR4
P6DIR4
PAIMD4
-
P0PLU4
P1PLU4
P2PLU4
P6PLU4
P7PLUD4
P8PLU4
PAPLUD4
P5PLU4
BUZS0
Bit 3
P7DIR3
P8DIR3
P6DIR3
PAIMD3
P6KYEN4
P0PLU3
P1PLU3
P2PLU3
P6PLU3
P7PLUD3
P8PLU3
PAPLUD3
P5PLU3
DLYS2
Bit 2
P7DIR2
P8DIR2
P6DIR2
PAIMD2
P6KYEN3
P0PLU2
P1PLU2
Port 1 Pull-up Control
P2PLU2
Port 2 Pull-up Control
P6PLU2
P7PLUD2
P8PLU2
PAPLUD2
P5PLU2
Port 5 Pull-up Control
DLYS1
Osscillation Stabilization
Wait Time Selection
Bit 1
P7DIR1
P8DIR1
P6DIR1
PAIMD1
P6KYEN2
P0PLU1
P1PLU1
P2PLU1
P6PLU1
P7PLUD1
P8PLU1
PAPLUD1
P5PLU1
DLYS0
P7DIR0
P8DIR0
P6DIR0
PAIMD0
P6KYEN1
P0PLU0
P1PLU0
P2PLU0
P6PLU0
P7PLUD0
P8PLU0
PAPLUD0
P5PLU0
-
IV - 31
IV - 38
IV - 43
III - 46
IV - 7
IV - 13
IV - 18
Page
IV - 27
IV - 22
IV - 27
IV - 31
IV - 38
IV - 42
II - 41
X - 3
X'3F3A' PADIR
Port A I/O Direction Control
- PADIR6 PADIR5 PADIR4 PADIR3 PADIR2 PADIR1 PADIR0
IV - 42
Bit 0
X'3F51'
X'3F52'
TM1BC7 TM1BC6 TM1BC5 TM1BC4 TM1BC3 TM1BC2 TM1BC1 TM1BC0
TM1BC Timer 1 Binary Counter VI - 9
TM0OC7 TM0OC6 TM0OC5 TM0OC4 TM0OC3 TM0OC2 TM0OC1 TM0OC0
TM0OC Timer 0 Output Compare Register VI - 8
X'3F50'
TM0BC7 TM0BC6 TM0BC5 TM0BC4 TM0BC3 TM0BC2 TM0BC1 TM0BC0
TM0BC Timer 0 Binary Counter VI - 9