Quatech MPAP-100 Interrupt control, Wait/DMA request control, Interrupt vector, stop bits, parity

Models: MPAP-100

1 64
Download 64 pages 37.9 Kb
Page 32
Image 32

WR1

Interrupt control, Wait/DMA request control

WR2

Interrupt vector

WR3

Receiver initialization and control

 

 

WR4

Transmit/Receive miscellaneous parameters and codes, clock rate,

 

stop bits, parity

WR5

Transmitter initialization and control

WR6

Sync character (1st byte) or SDLC address field

WR7

Sync character (2nd byte) or SDLC Flag

WR7'

Special HDLC Enhancement Register

 

 

WR8

Transmit buffer

WR9

Master interrupt control and reset

WR10

Miscellaneous transmitter/receiver control bits, NRZI, NRZ, FM

 

coding, CRC reset

WR11

Clock mode and source control

WR12

Lower byte of baud rate time constant

WR13

Lower byte of baud rate time constant

WR14

Miscellaneous control bits: baud rate generator, DPLL control, auto

 

echo

WR15

External/Status interrupt control

 

Table 4 --- SCC write register description

For complete information regarding the SCC registers please refer to Zilog's Z85230 technical manual.

Page 32
Image 32
Quatech MPAP-100 Interrupt control, Wait/DMA request control, Interrupt vector, Receiver initialization and control, WR10