PIC18LF2585 データシートの表示（PDF） - Microchip Technology

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PIC18LF2585

28/40/44-Pin, High-Temperature, High-Performance Microcontrollers with ECAN™, 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2585/2680/4585/4680

2.0 SPECIAL FEATURES OF THE

CPU

Note: For additional details on the Configuration bits,

refer to Section 24.1 “Configuration Bits” in

the “PIC18F2585/2680/4585/4680 Data Sheet”

(DS39625). Device ID information presented in

this section is for the High-Temperature

PIC18F2585/2680/4585/4680 family only.

2.1 Device ID Registers

The Device ID registers are read-only registers. They

identify the device type and revision for device

programmers and can be read by firmware using table

reads.

TABLE 2-1: DEVICE IDs

File Name

Bit 7 Bit 6 Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default/

Unprogrammed

Value

3FFFFEh

3FFFFFh

Legend:

Note 1:

DEVID1

DEV2 DEV1 DEV0 REV4

REV3

REV2

REV1

REV0

xxxx xxxx(1)

DEVID2 DEV10 DEV9 DEV8 DEV7

DEV6

DEV5

DEV4

DEV3

000 1100

x = unknown, u = unchanged, — = unimplemented. Shaded cells are unimplemented, read as ‘0’.

See Register 2-1 for DEVID1 values. DEVID registers are read-only and cannot be programmed by the user.

REGISTER 2-1: DEVID1: DEVICE ID REGISTER 1

R

R

R

R

R

DEV2

DEV1

DEV0

REV4

REV3

bit 7

R

REV2

R

REV1

R

REV0

bit 0

Legend:

R = Readable bit

-n = Value at POR

W = Writable bit

‘1’ = Bit is set

U = Unimplemented bit, read as ‘0’

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-5

bit 4-0

DEV<2:0>: Device ID bits

111 = PIC18F2585

110 = PIC18F2680

101 = PIC18F4585

100 = PIC18F4680

REV<4:0>: Revision ID bits

These bits are used to indicate the device revision.

DS39963A-page 9

© 2009 Microchip Technology Inc.

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