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1 Load T0
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1 Enable T1 Count
TIN Modes
00 External Clock Input
01 Gate Input
10 Trigger Input
(Non-retriggerable)
11 Trigger Input
(Retriggerable)
TOUT Modes
00 Not Used
01 T0 Out
10 T1 Out
11 Internal Clock Out
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D6
D5
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D2
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T1 Initial Value
(When Written)
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T1 Current Value
(When Read)
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Clock Source
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D6
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Count Mode
0 T0 Single Pass
1 T0 Modulo-N
Reserved (Must be 0)
Prescaler Modulo
(Range 1-64 Decimal
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P20-P27 I/O Definition
0 Defines Bit as Output
1 Defines Bit as Input
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0 Port 2 Open Drain
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Reserved (Must be 0)
0 P32 = Input
0 P35 = Output
1 P32 = DAV0/RDY0
P35 = RDY0/DAV0
00 P33 = Input
P34 = Output
01 P33 = Input `
10 P34 = DM
11 Reserved
0 P31 = Input (TIN)
P36 = Output (TOUT)
1 P31 = DAV2/RDY2
P36 = RDY2/DAV2
0 P30 = Input
P37 = Output
1 P30 = Serial In
P37 = Serial Out
0 Parity Off
1 Parity On
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P00 - P00 Mode
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01 Input
1x A11 - A8
Stack Selection
0 External
1 Internal
P17 - P10 Mode
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01 Reserved
10 AD7 - AD0 11 High-Impedance AD7 - AD0
AS, DS,R/W, A11 - A8
A15 - A12, If Selected
External Memory Timing
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1 Extended
P07 - P04 Mode
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01 Input
1X A15 - A12
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D4 D3
D2
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Interrupt Group Priority
Reserved = 000
C>A>B = 001
A>B>C = 010
A>C>B = 011
B>C>A = 100
C>B>A = 101
B>A>C = 110
Reserved = 111
IRQ1, IRQ4 Priority (Group C)
0 IRQ1>IRQ4
1 IRQ4>IRQ1 IRQ0, IRQ2 Priority (Group B)
0 IRQ2>IRQ0
1 IRQ0>IRQ2
IRQ3, IRQ5 Priority (Group A)
0 IRQ5>IRQ3
1 IRQ3>IRQ5
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IRQ1 = P33 Input
IRQ2 = P31 Input
IRQ3 = P30 Input, Serial Input
IRQ4 = T0, Serial Input
IRQ5 = T1
Reserved (Must be 0)
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D6
D5
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D2
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1 Enables IRQ5 - IRQ0
(D0 = IRQ0)
Reserved (Must be 0)
1 Enables Interrupts
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D6
D5
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User Flag F1
User Flag F2
Half Carry Flag
Decimal Adjust Flag
Overflow Flag
Sign Flag
Zero Flag
Carry Flag
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D6
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r4
r5
r6
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Register
Pointer
r7
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Byte (SP15 - SP8)
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Byte (SP7 - SP0)
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