st72f321r STMicroelectronics, st72f321r Datasheet - Page 86

• Manufacturer Part Number: st72f321r
• Description: 64/44-pin 8-bit Mcu With 32 To 60k Flash/rom, Adc, Five Timers, Spi, Sci, I2c Interface
• Manufacturer: STMicroelectronics

ST72321
16-BIT TIMER (Cont’d)
OUTPUT
(OC2HR)
Read/Write
Reset Value: 1000 0000 (80h)
This is an 8-bit register that contains the high part
of the value to be compared to the CHR register.
OUTPUT
(OC2LR)
Read/Write
Reset Value: 0000 0000 (00h)
This is an 8-bit register that contains the low part of
the value to be compared to the CLR register.
COUNTER HIGH REGISTER (CHR)
Read Only
Reset Value: 1111 1111 (FFh)
This is an 8-bit register that contains the high part
of the counter value.
COUNTER LOW REGISTER (CLR)
Read Only
Reset Value: 1111 1100 (FCh)
This is an 8-bit register that contains the low part of
the counter value. A write to this register resets the
counter. An access to this register after accessing
the CSR register clears the TOF bit.
86/189
MSB
MSB
MSB
MSB
7
7
7
7
COMPARE
COMPARE
2
2
HIGH
LOW
REGISTER
REGISTER
LSB
LSB
LSB
LSB
0
0
0
0
ALTERNATE
(ACHR)
Read Only
Reset Value: 1111 1111 (FFh)
This is an 8-bit register that contains the high part
of the counter value.
ALTERNATE
(ACLR)
Read Only
Reset Value: 1111 1100 (FCh)
This is an 8-bit register that contains the low part of
the counter value. A write to this register resets the
counter. An access to this register after an access
to CSR register does not clear the TOF bit in the
CSR register.
INPUT CAPTURE 2 HIGH REGISTER (IC2HR)
Read Only
Reset Value: Undefined
This is an 8-bit read only register that contains the
high part of the counter value (transferred by the
Input Capture 2 event).
INPUT CAPTURE 2 LOW REGISTER (IC2LR)
Read Only
Reset Value: Undefined
This is an 8-bit read only register that contains the
low part of the counter value (transferred by the In-
put Capture 2 event).
MSB
MSB
MSB
MSB
7
7
7
7
COUNTER
COUNTER
HIGH
LOW
REGISTER
REGISTER
LSB
LSB
LSB
LSB
0
0
0
0