SIO1007 datasheet(73/108 Pages) MICROCHIP

73 / 108 page

 2005 - 2015 Microchip Technology Inc.

DS00002020A-page 73

SIO1007

The Runtime Register logical device base address is initialized using the base address bits located in two configuration

registers: CR30-low byte and CR21-high byte. The Runtime Register base address can be set to 4080 locations on 16-

byte boundaries from 0000H - FFF0H.

The Runtime Register base address bits A[3:0] are decoded as 0000b. The Runtime Register block uses full 16-bit

addressing decoding. An address matching the Runtime Register base address bits A[15:4] is decoded using the spe-

cific address bits A[3:0] to target registers in Section 17.0.

When the activate bit in CR3A-bit1 is cleared to 0, no address decoding takes place for the Runtime Register block log-

ical device.

18.4.33

CR22

18.4.34

CR23

18.4.35

CR24

CR24 can only be accessed in the configuration state and after the CSR has been initialized to 24H. CR24 is used to

select the base address of Serial Port 1 (UART1). The serial port can be set to 96 locations on 8-byte boundaries from

100H - 3F8H. To disable Serial Port 1, set ADR9 and ADR8 to zero. Set CR24.0 to 0 when writing the UART1 Base

Address.

Serial Port 1 Address Decoding: address bits A[15:10] must be ‘000000’ to access UART1 registers. A[2:0] are decoded

as XXXb.

TABLE 18-28: CR21

Runtime Register Base Address Register - High Byte

Type: R/W

Default: 0x00 on VCC POR

BIT NO.

BIT NAME

DESCRIPTION

ADR12

Runtime Register Base Address bits for decoder.

ADR13

ADR14

ADR15

RESERVED

Reads return 0. Writes have no effect.

RESERVED

Reads return 0. Writes have no effect.

RESERVED

Reads return 0. Writes have no effect.

RESERVED

Reads return 0. Writes have no effect.

TABLE 18-29: CR24

UART1 Base Address Register

Type: R/W

Default: 0X00 ON VCC POR

BIT NO.

BIT NAME

DESCRIPTION

Reserved

Read Only. A read returns 0.

ADR3

Serial Port 1 Base Address bits for decoder.

ADR4

ADR5

ADR6

ADR7

ADR8

ADR9

SIO1007 bảng dữ liệu(PDF) 73 Page - Microchip Technology

SIO1007 bảng dữ liệu(HTML) 73 Page - Microchip Technology

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

bảng dữ liệu tải về

Link URL