PIC16F628A-IP Datasheet, PDF (21/180 Pages) Microchip Technology – Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F627A/628A/648A
TABLE 4-4: SPECIAL FUNCTION REGISTERS SUMMARY BANK1
Address
Bank 1
80h
81h
82h
83h
84h
85h
86h
87h
88h
89h
8Ah
8Bh
8Ch
8Dh
8Eh
8Fh
90h
91h
92h
93h
94h
95h
96h
97h
98h
99h
9Ah
9Bh
9Ch
9Dh
9Eh
9Fh
Legend:
Note 1:
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
INDF
Addressing this location uses contents of FSR to address data memory (not a physical
register)
xxxx xxxx 30
OPTION
RBPU INTEDG T0CS
T0SE
PSA
PS2
PS1
PS0 1111 1111 25
PCL
Program Counter’s (PC) Least Significant Byte
0000 0000 30
STATUS
IRP
RP1
RP0
TO
PD
Z
DC
C
0001 1xxx 24
FSR
Indirect Data Memory Address Pointer
xxxx xxxx 30
TRISA
TRISA7 TRISA6 TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 1111 1111 33
TRISB
TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 1111 1111 38
—
Unimplemented
—
—
—
Unimplemented
—
—
—
Unimplemented
—
—
PCLATH
—
—
— Write Buffer for upper 5 bits of Program Counter
---0 0000 30
INTCON
GIE
PEIE
T0IE
INTE
RBIE
T0IF
INTF
RBIF 0000 000x 26
PIE1
EEIE
CMIE
RCIE
TXIE
—
CCP1IE TMR2IE TMR1IE 0000 -000 27
—
Unimplemented
—
—
PCON
—
—
—
—
OSCF
—
POR
BOR ---- 1-0x 29
—
Unimplemented
—
—
—
Unimplemented
—
—
—
Unimplemented
—
—
PR2
Timer2 Period Register
1111 1111 54
—
Unimplemented
—
—
—
Unimplemented
—
—
—
Unimplemented
—
—
—
Unimplemented
—
—
—
Unimplemented
—
—
TXSTA
CSRC
TX9
TXEN SYNC
—
BRGH
TRMT
TX9D 0000 -010 73
SPBRG
Baud Rate Generator Register
0000 0000 75
EEDATA EEPROM Data Register
xxxx xxxx 91
EEADR
EEPROM Address Register
xxxx xxxx 92
EECON1
—
—
—
—
WRERR WREN
WR
RD ---- x000 92
EECON2 EEPROM Control Register 2 (not a physical register)
---- ---- 92
—
Unimplemented
—
—
VRCON
VREN
VROE
VRR
—
VR3
VR2
VR1
VR0 000- 0000 69
- = Unimplemented locations read as ‘0’, u = unchanged, x = unknown, q = value depends on condition, shaded = unimplemented
For the initialization condition for registers tables, refer to Table 14-6 and Table 14-7.
© 2009 Microchip Technology Inc.
DS40044G-page 21