Z8913920FSC View Datasheet(PDF) - Zilog

Part Name

Description

Manufacturer

Z8913920FSC

VOICE PROCESSING CONTROLLERS

Zilog 

Z89138/Z89139

Voice Processing Controllers

Z8 CONTROL REGISTERS

R240

D7 D6 D5 D4 D3 D2 D1 D0

RESERVED

Figure 67. Reserved (F0H)

R241 TMR

D7 D6 D5 D4 D3 D2 D1 D0

0 No Function

1 Load T0

0 Disable T0 Count

1 Enable T0 Count

0 No Function

1 Load T1

0 Disable T1 Count

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 (P36)

Figure 68. Timer Mode Register

(F1H: Read/Write)

R242 T1

D7 D6 D5 D4 D3 D2 D1 D0

T1 Low Byte Initial Value

(When Written)

T1 Low Byte Current Value

(When Read)

Figure 69. Counter/Timer 1 Register

(F2H: Read/Write)

Zilog

R243 PRE1

D7 D6 D5 D4 D3 D2 D1 D0

Count Mode

0 T1 Single Pass

1 T1 Modulo N

Clock Source

1 T1Internal

0 T1External Timing Input

(TIN) Mode

Prescaler Modulo

(Range: 1-64 Decimal

01-00 HEX)

Figure 70. Prescaler 1 Register

(F3H: Write-Only)

R244 T0

D7 D6 D5 D4 D3 D2 D1 D0

T0 Low Byte Initial Value

(When Written)

T0 Low Byte Current Value

(When Read)

Figure 71. Counter/Timer 0 Register

(F4H: Read/Write)

R243 PRE1

D7 D6 D5 D4 D3 D2 D1 D0

Count Mode

0 T1 Single Pass

1 T1 Modulo N

Clock Source

1 T1Internal

0 T1External Timing Input

(TIN) Mode

Prescaler Modulo

(Range: 1-64 Decimal

01-00 HEX)

Figure 72. Prescaler 0 Register

(F5H: Write-Only)

60

PRELIMINARY

DS97TAD0201

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