900844 datasheet(40/118 Pages) FREESCALE

40 / 118 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

900844

FUNCTIONAL DEVICE OPERATION

SYSTEM CONTROL INTERFACE

Figure 16. Relationship Between the VID/VIDEN Pins, the DPV1VRD Bit, and VRCOMP Signal

SPECIAL REGISTERS

Vendor ID and Version ID

The Vendor ID and other version details can be read via the Identification bits. These are hard-wired on the chip.

Embedded Memory

There are 24 memory registers of general purpose embedded memory, which are accessible by the processor to store critical

data during power down. These registers consist of 8 in the general purpose registers area, and 16 more in the Freescale

dedicated register area. General memory registers are called MEMx [MEM1, MEM2… MEM8]. The Freescale dedicated registers

are called FSLMEMx [FSLMEM1, FSLMEM2… FSLMEM16]. The data written to these registers is maintained by the coin cell,

when the main battery is deeply discharged or removed, and is part of the RTC block. The content of the embedded memory is

reset by RTCPORB. The banks can be used for any system need, for bit retention with coin cell backup.

Table 12. Vendor ID Registers Structure and Bits Description

Name

Bits

Description

ID1 (ADDR 0x00 - R - Default Value: 0x28)

VENDID1

2:0

Chip1 Vendor ID

REV1

5:3

Chip1 Revision ID

Reserved

7:6

Reserved

ID2 (ADDR 0x01 - R - Default Value: 0x00)

VENDID2

2:0

Chip2 Vendor ID

REV2

5:3

Chip2 Revision ID

Reserved

7:6

Reserved

ID3 (ADDR 0x02 - R - Default Value: 0x00)

Reserved

7:0

Reserved

ID4 (ADDR 0x03 - R - Default Value: 0x00)

Reserved

7:0

Reserved

SCU

900844 데이터시트(PDF) 40 Page - Freescale Semiconductor, Inc

900844 데이터시트(HTML) 40 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

데이터시트 다운로드

링크 URL