Rainbow-electronics T89C5115 Instrukcja Użytkownika Pobierz pdf (Strona 74)

T89C5115

4128A–8051–04/02

Table 48. CCON Register

CCON (S:D8h)

PCA Counter Control Register

Reset Value = 00xx xx00b

76543210

CF CR - - - - CCF1 CCF0

Bit

Number

Bit

Mnemonic Description

7CF

PCA Timer/Counter Overflow flag

Set by hardware when the PCA Timer/Counter rolls over. This generates a PCA

interrupt request if the ECF bit in CMOD register is set.

Must be cleared by software.

6CR

PCA Timer/Counter Run Control bit

Clear to turn the PCA Timer/Counter off.

Set to turn the PCA Timer/Counter on.

5-2 -

Reserved

The value read from these bist are indeterminate. Do not set these bits.

1CCF1

PCA Module 1 Compare/Capture flag

Set by hardware when a match or capture occurs. This generates a PCA

interrupt request if the ECCF 1 bit in CCAPM 1 register is set.

Must be cleared by software.

0CCF0

PCA Module 0 Compare/Capture flag

Set by hardware when a match or capture occurs. This generates a PCA

interrupt request if the ECCF 0 bit in CCAPM 0 register is set.

Must be cleared by software.

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 104 105

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Rainbow-electronics T89C5115 Instrukcja Użytkownika Strona 74