PSD835G2 datasheet(19/102 Pages) STMICROELECTRONICS

19 / 102 page

19/102

PSD835G2

PSD REGISTER DESCRIPTION AND ADDRESS OFFSET

Table 5 shows the offset addresses to the PSD

registers relative to the CSIOP base address. The

CSIOP space is the 256 Bytes of address that is

allocated by the user to the internal PSD registers.

Table 5 provides brief descriptions of the registers

in CSIOP space. The following section gives a

more detailed description.

Table 5. Register Address Offset

Note: 1. Other registers that are not part of the I/O ports.

Port

Other

Description

Data In

Reads Port pin as input, MCU I/

O input mode

Control

Selects mode between MCU I/O

or Address Out

Data Out

Stores data for output to Port

pins, MCU I/O output mode

Direction

Configures Port pin as input or

output

Drive Select

Configures Port pins as either

CMOS or Open Drain on some

pins, while selecting high slew

rate on other pins.

Input Macrocell

Reads Input Macrocells

Enable Out

Reads the status of the output

enable to the I/O Port driver

Output

Macrocells A

READ – reads output of

macrocells A

WRITE – loads macrocell flip-

flops

Output

Macrocells B

READ – reads output of

macrocells B

WRITE – loads macrocell flip-

flops

Mask Macrocells

Blocks writing to the Output

Macrocells A

Mask Macrocells

Blocks writing to the Output

Macrocells B

Primary Flash

Protection

Read only – Primary Flash

Sector Protection

Secondary Flash

memory

Protection

Read only – PSD Security and

Secondary Flash memory

Sector Protection

JTAG Enable

Enables JTAG Port

PMMR0

Power Management Register 0

PMMR2

Power Management Register 2

Page

Page Register

Places PSD memory areas in

Program and/or Data space on

an individual basis.

Memory_ID0

Read only – Primary Flash

memory and SRAM size

Memory_ID1

Read only – Secondary Flash

memory type and size

PSD835G2 датащи(PDF) 19 Page - STMicroelectronics

PSD835G2 датащи(HTML) 19 Page - STMicroelectronics

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

датащи скачать

ссылки URL