ST20-GP1 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST20-GP1

GPS PROCESSOR

STMicroelectronics 

ST20-GP1

ASCControl

ASC base address + #0C

Read/Write

Bit

Bit field

Function

2:0

Mode

ASC mode control

Mode2:0

Mode

000

RESERVED

001

8-bit data

010

RESERVED

011

7-bit data + parity

100

9-bit data

101

8-bit data + wake up bit

110

RESERVED

111

8-bit data + parity

4:3

StopBits

Number of stop bits selection

StopBits1:0 Number of stop bits

00

0.5 stop bits

01

1 stop bit

10

1.5 stop bits

11

2 stop bits

5

ParityOdd Parity selection

0 Even parity (parity bit set on odd number of ‘1’s in data)

1 Odd parity (parity bit set on even number of ‘1’s in data)

6

LoopBack Loopback mode enable bit

0 Standard transmit/receive mode

1 Loopback mode enabled

7

Run

Baud rate generator run bit

0 Baud rate generator disabled (ASC inactive)

1 Baud rate generator enabled

8

RxEnable

Receiver enable bit

0 Receiver disabled

1 Receiver enabled

15:9

RESERVED. Write 0, will read back 0.

Table 13.5 ASCControl register format

ASCIntEnable register

The ASCIntEnable register enables a source of interrupt.

Interrupts will occur when a status bit in the ASCStatus register is 1, and the corresponding bit in

the ASCIntEnable register is 1.

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