C-31
REGISTERS
TH0, TL0
Address:
TH0 S:8CH
TL0 S:8AH
Reset State:
0000 0000B
TH0, TL0 Timer Registers. These registers operate in cascade to form the 16-bit timer register in timer
0 or separately as 8-bit timer/counters.
7
0
High/Low Byte of Timer 0 Register
Bit
Number
Bit
Mnemonic
Function
7:0
TH0.7:0
TL0.7:0
High byte of the timer 0 timer register.
Low byte of the timer 0 timer register.
TH1, TL1
Address:
TH1 S:8DH
TL1 S:8BH
Reset State:
0000 0000B
TH1, TL1 Timer Registers. These registers operate in cascade to form the 16-bit timer register in timer
1 or separately as 8-bit timer/counters.
7
0
High/Low Byte of Timer 1 Register
Bit
Number
Bit
Mnemonic
Function
7:0
TH1.7:0
TL1.7:0
High byte of the timer 1 timer register.
Low byte of the timer 1 timer register.
Summary of Contents for 8XC251SA
Page 2: ......
Page 3: ...May 1996 8XC251SA 8XC251SB 8XC251SP 8XC251SQ Embedded Microcontroller User s Manual...
Page 18: ......
Page 19: ...1 Guide to This Manual...
Page 20: ......
Page 30: ......
Page 31: ...2 Architectural Overview...
Page 32: ......
Page 41: ...3 Address Spaces...
Page 42: ......
Page 63: ...4 Device Configuration...
Page 64: ......
Page 81: ...5 Programming...
Page 82: ......
Page 102: ......
Page 103: ...6 Interrupt System...
Page 104: ......
Page 120: ......
Page 121: ...7 Input Output Ports...
Page 122: ......
Page 132: ......
Page 133: ...8 Timer Counters and Watchdog Timer...
Page 134: ......
Page 153: ...9 Programmable Counter Array...
Page 154: ......
Page 170: ......
Page 171: ...10 Serial I O Port...
Page 172: ......
Page 187: ...11 Minimum Hardware Setup...
Page 188: ......
Page 197: ...12 Special Operating Modes...
Page 198: ......
Page 206: ......
Page 207: ...13 External Memory Interface...
Page 208: ......
Page 239: ...14 Programming and Verifying Nonvolatile Memory...
Page 240: ......
Page 250: ......
Page 251: ...A Instruction Set Reference...
Page 252: ......
Page 390: ......
Page 391: ...B Signal Descriptions...
Page 392: ......
Page 400: ......
Page 401: ...C Registers...
Page 402: ......
Page 436: ......
Page 437: ...Glossary...
Page 438: ......
Page 446: ......
Page 447: ...Index...
Page 448: ......
Page 458: ......