PIC16C745/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16C745/SP

8-Bit CMOS Microcontrollers with USB

Microchip Technology 

PIC16C745/765

TABLE 4-1: SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED)

Address Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on: Value on all

POR, other resets

BOR

(2)

Bank 3

180h

INDF(3)

Addressing this location uses contents of FSR to address data memory (not a physical register)

0000 0000 0000 0000

181h OPTION_REG RBPU INTEDG

T0CS

T0SE

PSA

PS2

PS1

PS0 1111 1111 1111 1111

182h

PCL(3)

Program Counter’s (PC) Least Significant Byte

0000 0000 0000 0000

183h

STATUS(3)

IRP

RP1

RP0

TO

PD

Z

DC

C

0001 1xxx 000q quuu

184h

FSR(3)

Indirect data memory address pointer

xxxx xxxx uuuu uuuu

185h

—

Unimplemented

—

—

186h TRISB

PORTB Data Direction Register

1111 1111 1111 1111

187h

—

Unimplemented

—

—

188h

—

Unimplemented

—

—

189h

18Ah

—

Unimplemented

PCLATH(1,3)

—

—

— Write Buffer for the upper 5 bits of the Program Counter

—

—

---0 0000 ---0 0000

18Bh INTCON(3)

GIE

PEIE

T0IE

INTE

RBIE

T0IF

INTF

RBIF 0000 000x 0000 000u

18Ch-

18Fh

—

Unimplemented

—

—

190h UIR

—

—

STALL

UIDLE

TOK_DNE ACTIVITY

UERR USB_RST --00 0000 --00 0000

191h UIE

—

—

STALL

UIDLE

TOK_DNE ACTIVITY

UERR USB_RST --00 0000 --00 0000

192h UEIR

BTS_ERR OWN_ERR WRT_ERR BTO_ERR

DFN8

CRC16

CRC5 PID_ERR 0000 0000 0000 0000

193h UEIE

BTS_ERR OWN_ERR WRT_ERR BTO_ERR

DFN8

CRC16

CRC5 PID_ERR 0000 0000 0000 0000

194h USTAT

—

—

—

ENDP1

ENDP0

IN

—

—

---x xx-- ---u uu--

195h UCTRL

—

—

SEO

PKT_DIS DEV_ATT RESUME SUSPND

—

--x0 000- --xq qqq-

196h UADDR

—

ADDR6 ADDR5 ADDR4

ADDR3

ADDR2

ADDR1 ADDR0 -000 0000 -000 0000

197h USWSTAT SWSTAT7 SWSTAT6 SWSTAT5 SWSTAT4 SWSTAT3 SWSTAT2 SWSTAT1 SWSTAT0 0000 0000 0000 0000

198h UEP0

—

—

—

—

EP_CTL_DIS EP_OUT_EN EP_IN_EN EP_STALL ---- 0000 ---- 0000

199h UEP1

—

—

—

—

EP_CTL_DIS EP_OUT_EN EP_IN_EN EP_STALL ---- 0000 ---- 0000

19Ah UEP2

—

—

—

—

EP_CTL_DIS EP_OUT_EN EP_IN_EN EP_STALL ---- 0000 ---- 0000

19Bh-

19Fh

Reserved

Reserved, do not use.

0000 0000 0000 0000

Legend:

Note 1:

2:

3:

4:

x = unknown, u = unchanged, q = value depends on condition, - = unimplemented read as ’0’.

Shaded locations are unimplemented, read as ‘0’.

The upper byte of the program counter is not directly accessible. PCLATH is a holding register for the PC<12:8> whose contents

are transferred to the upper byte of the program counter.

Other (non power-up) resets include external reset through MCLR and Watchdog Timer Reset.

These registers can be addressed from either bank.

The Parallel Slave Port (PORTD and PORTE) is not implemented on the PIC16C745, always maintain these bits clear.

DS41124A-page 20

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© 1999 Microchip Technology Inc.

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