PIC16F877A-I/PT Microchip Technology Inc., PIC16F877A-I/PT Datasheet - Page 56

• Manufacturer Part Number: PIC16F877A-I/PT
• Description: 44 PIN, 7 KB FLASH, 368 RAM, 33 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F877A-I/PT

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 33
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin TQFP
• Programmable Memory: 14K Bytes
• Ram Size: 368 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F87X
6.7
TMR1H and TMR1L registers are not reset to 00h on a
POR, or any other RESET, except by the CCP1 and
CCP2 special event triggers.
T1CON register is reset to 00h on a Power-on Reset,
or a Brown-out Reset, which shuts off the timer and
leaves a 1:1 prescale. In all other RESETS, the register
is unaffected.
TABLE 6-2:
DS30292C-page 54
0Bh,8Bh,
10Bh, 18Bh
0Ch
8Ch
0Eh
0Fh
10h
Legend:
Note 1: Bits PSPIE and PSPIF are reserved on the PIC16F873/876; always maintain these bits clear.
Address
Resetting of Timer1 Register Pair
(TMR1H, TMR1L)
x = unknown, u = unchanged, - = unimplemented, read as '0'. Shaded cells are not used by the Timer1 module.
INTCON
PIR1
PIE1
TMR1L
TMR1H
T1CON
Name
REGISTERS ASSOCIATED WITH TIMER1 AS A TIMER/COUNTER
Holding Register for the Least Significant Byte of the 16-bit TMR1 Register
Holding Register for the Most Significant Byte of the 16-bit TMR1 Register
PSPIF
PSPIE
Bit 7
GIE
—
(1)
(1)
ADIE
Bit 6
PEIE
ADIF
—
T1CKPS1 T1CKPS0 T1OSCEN
RCIF
RCIE
Bit 5
T0IE
INTE
Bit 4
TXIF
TXIE
SSPIF
SSPIE
RBIE
Bit 3
6.8
The prescaler counter is cleared on writes to the
TMR1H or TMR1L registers.
T1SYNC
CCP1IF
CCP1IE
Bit 2
T0IF
Timer1 Prescaler
TMR1CS
TMR2IF
TMR2IE
Bit 1
INTF
TMR1ON
TMR1IE
TMR1IF
RBIF
Bit 0
2001 Microchip Technology Inc.
0000 000x
0000 0000
0000 0000
xxxx xxxx
xxxx xxxx
--00 0000
Value on:
POR,
BOR
0000 000u
0000 0000
0000 0000
uuuu uuuu
uuuu uuuu
--uu uuuu
Value on
RESETS
all other