Intel 8XC251SQ User Manual

3-19

ADDRESS SPACES

Table 3-8. Serial I/O SFRs

Mnemonic

Name

Address

SCON

Serial Control

S:98H

SBUF

Serial Data Buffer

S:99H

SADEN

Slave Address Mask

S:B9H

SADDR

Slave Address

S:A9H

Table 3-9. Timer/Counter and Watchdog Timer SFRs

Mnemonic

Name

Address

TL0

Timer/Counter 0 Low Byte

S:8AH

TH0

Timer/Counter 0 High Byte

S:8CH

TL1

Timer/Counter 1 Low Byte

S:8BH

TH1

Timer/Counter 1 High Byte

S:8DH

TL2

Timer/Counter 2 Low Byte

S:CCH

TH2

Timer/Counter 2 High Byte

S:CDH

TCON

Timer/Counter 0 and 1 Control

S:88H

TMOD

Timer/Counter 0 and 1 Mode Control

S:89H

T2CON

Timer/Counter 2 Control

S:C8H

T2MOD

Timer/Counter 2 Mode Control

S:C9H

RCAP2L

Timer 2 Reload/Capture Low Byte

S:CAH

RCAP2H

Timer 2 Reload/Capture High Byte

S:CBH

WDTRST

WatchDog Timer Reset

S:A6H

Table 3-10. Programmable Counter Array (PCA) SFRs

Mnemonic

Name

Address

CCON

PCA Timer/Counter Control

S:D8H

CMOD

PCA Timer/Counter Mode

S:D9H

CCAPM0

PCA Timer/Counter Mode 0

S:DAH

CCAPM1

PCA Timer/Counter Mode 1

S:DBH

CCAPM2

PCA Timer/Counter Mode 2

S:DCH

CCAPM3

PCA Timer/Counter Mode 3

S:DDH

CCAPM4

PCA Timer/Counter Mode 4

S:DEH