XA-SCC Datasheet, PDF (5/42 Pages) NXP Semiconductors – CMOS 16-bit communications microcontroller

Philips Semiconductors
CMOS 16-bit communications microcontroller
Preliminary specification
XA-SCC
BLOCK DIAGRAM
XA CPU
INTERRUPT
CONTROLLER
256 BYTES
RAM
RESET
CONTROL &
STATUS
TIMERS 0,1
WATCHDOG
TIMER
EXTERNAL
MEMORY
and I/O
BUS
MIF and
DRAM
CONTROLLER
DMA
CHANNELS
x8
AUTOBAUD
x4
SCCs x4
v.54
2047
x2
SCP
INTERFACE
IDL
INTERFACE
NOTE:
Main Communications Data paths shown in bold.
Figure 1. XA-SCC Block Diagram
PORTS and
PIN
FUNCTION
MUX
SCP PORT
GPIO
IDL and
NMSI
PORTS
SU01122
1999 Mar 29
5