REGISTER SUMMARY
M68HC16 Z SERIES
D-54
USER’S MANUAL
D.7 Multichannel Communication Interface Module
The MCCI is used only in the MC68HC16Z4 and the MC68CK16Z4.
shows the MCCI address map.
D.7.1 MCCI Module Configuration Register
MMCR bits enable stop mode, establish the privilege level required to access certain
MCCI registers, and determine the arbitration priority of MCCI interrupt requests.
Table D-37 MCCI Address Map
Address
1
NOTES:
1. Y = M111, where M is the logic state of the module mapping (MM) bit in the SIMCR.
15
8
7
0
$YFFC00
MCCI Module Configuration Register (MMCR)
$YFFC02
MCCI Test Register (MTEST)
$YFFC04
SCI Interrupt Level Register (ILSCI)
MCCI Interrupt Vector Register (MIVR)
$YFFC06
SPI Interrupt Level Register (ILSPI)
Not Used
$YFFC08
Not Used
MCCI Pin Assignment Register (MPAR)
$YFFC0A
Not Used
MCCI Data Direction Register (MDDR)
$YFFC0C
Not Used
MCCI Port Data Register (PORTMC)
$YFFC0E
Not Used
MCCI Port Pin State Register (PORTMCP)
$YFFC10 –
$YFFC16
Not Used
$YFFC18
SCIA Control Register 0 (SCCR0A)
$YFFC1A
SCIA Control Register 1 (SCCR1A)
$YFFC1C
SCIA Status Register (SCSRA)
$YFFC1E
SCIA Data Register (SCDRA)
$YFFC20 –
$YFFC26
Not Used
$YFFC28
SCIB Control Register 0 (SCCR0B)
$YFFC2A
SCIB Control Register 1 (SCCR1B)
$YFFC2C
SCIB Status Register (SCSRB)
$YFFC2E
SCIB Data Register (SCDRB)
$YFFC30 –
$YFFC36
Not Used
$YFFC38
SPI Control Register (SPCR)
$YFFC3A
Not Used
$YFFC3C
SPI Status Register (SPSR)
$YFFC3E
SPI Data Register (SPDR)
MMCR — MCCI Module Configuration Register
$YFFC00
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
STOP
NOT USED
SUPV
NOT USED
IARB[3:0]
RESET:
0
1
0
0
0
0
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Freescale Semiconductor, Inc.
For More Information On This Product,
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