MC68HC908KX8 Datasheet, PDF (80/310 Pages) Motorola, Inc – Microcontrollers

System Integration Module (SIM)
Addr. Register Name
Bit 7
Read: POR
SIM Reset Status Register
$FE01
(SRSR) Write:
See page 95.
POR: 1
Read: IF6
Interrupt Status Register 1
$FE04
(INT1) Write: R
See page 97.
Reset: 0
Read: IF14
Interrupt Status Register 2
$FE05
(INT2) Write: R
See page 97.
Reset: 0
Read: IF22
Interrupt Status Register 3
$FE06
(INT3) Write: R
See page 98.
Reset: 0
6
5
0
COP
0
0
IF5
IF4
R
R
0
0
IF13
IF12
R
R
0
0
IF21
IF20
R
R
0
0
= Unimplemented
4
3
2
1
ILOP ILAD MENRST LVI
0
0
0
0
IF3
IF2
IF1
0
R
R
R
R
0
0
0
0
IF11
IF10
IF9
IF8
R
R
R
R
0
0
0
0
IF19
IF18
IF17
IF16
R
R
R
R
0
0
0
0
R = Reserved
Figure 6-2. SIM I/O Register Summary
Bit 0
0
0
0
R
0
IF7
R
0
IF15
R
0
Table 6-1 shows the internal signal names used in this section.
Table 6-1. Signal Name Conventions
Signal Name
Description
CGMXCLK Selected clock source from internal clock generator module (ICG)
CGMOUT
Clock output from ICG module
(bus clock = CGMOUT divided by two)
IAB
Internal address bus
IDB
Internal data bus
PORRST Signal from the power-on reset (POR) module to the SIM
IRST
Internal reset signal
R/W
Read/write signal
Technical Data
80
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 — Rev. 1.0
System Integration Module (SIM)
MOTOROLA