PIC16F628-20P Datasheet, PDF (18/170 Pages) Microchip Technology – FLASH-Based 8-Bit CMOS Microcontroller

PIC16F62X
TABLE 3-2: SPECIAL FUNCTION REGISTERS SUMMARY BANK 1
Address Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR
Reset⁽¹⁾
Details on
Page
Bank 1
80h
INDF
Addressing this location uses contents of FSR to address data memory (not a physical
xxxx xxxx
25
register)
81h
OPTION
RBPU INTEDG T0CS T0SE
PSA
PS2
PS1
PS0 1111 1111
20
82h
PCL
Program Counter's (PC) Least Significant Byte
0000 0000
25
83h
STATUS
IRP
RP1
RP0
TO
PD
Z
DC
C
0001 1xxx
19
84h
FSR
Indirect data memory address pointer
xxxx xxxx
25
85h
TRISA
TRISA7 TRISA6 TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 1111 1111
29
86h
TRISB
TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 1111 1111
34
87h
—
Unimplemented
—
—
88h
—
Unimplemented
—
—
89h
—
Unimplemented
—
—
8Ah
PCLATH
—
—
— Write buffer for upper 5 bits of program counter
---0 0000
25
8Bh
INTCON
GIE
PEIE
T0IE
INTE
RBIE
T0IF
INTF
RBIF 0000 000x
21
8Ch
PIE1
EEIE
CMIE
RCIE
TXIE
—
CCP1IE TMR2IE TMR1IE 0000 -000
22
8Dh
—
Unimplemented
—
—
8Eh
8Fh
90h
91h
92h
93h
94h
95h
96h
97h
98h
99h
9Ah
9Bh
9Ch
9Dh
9Eh
9Fh
Legend:
Note 1:
PCON
—
—
—
—
OSCF
—
POR
BOD ---- 1-0x
24
—
Unimplemented
—
—
—
Unimplemented
—
—
—
Unimplemented
—
—
PR2
Timer2 Period Register
1111 1111
50
—
Unimplemented
—
—
—
Unimplemented
—
—
—
Unimplemented
—
—
—
Unimplemented
—
—
—
Unimplemented
—
—
TXSTA
CSRC
TX9
TXEN SYNC
—
BRGH TRMT TX9D 0000 -010
69
SPBRG
Baud Rate Generator Register
0000 0000
69
EEDATA
EEPROM data register
xxxx xxxx
87
EEADR
— EEPROM address register
xxxx xxxx
87
EECON1
—
—
—
— WRERR WREN
WR
RD
---- x000
87
EECON2
EEPROM control register 2 (not a physical register)
--------
87
—
Unimplemented
—
—
VRCON
VREN VROE
VRR
—
VR3
VR2
VR1
VR0 000- 0000
59
— = Unimplemented locations read as ‘0’, u = unchanged, x = unknown, q = value depends on condition, shaded = unim-
plemented
For the Initialization Condition for Registers Tables, refer to Table 14-7 and Table 14-8 on page 98.
DS40300C-page 16
Preliminary
 2003 Microchip Technology Inc.