MC68HC908LD64 Datasheet, PDF (237/362 Pages) Freescale Semiconductor, Inc – Microcontrollers

DDC12AB Interface
I/O Pins
Addr. Register Name
Bit 7
6
5
4
3
Read: ALIF NAKIF
BB
DDC Master Control
MAST MRW
$0016
Register Write: 0
0
(DDCMCR)
Reset: 0
0
0
0
0
$0017
DDC Address Register
(DDCADR)
Read:
Write:
Reset:
DAD7
1
DAD6
0
DAD5
1
DAD4
0
DAD3
0
Read:
0
$0018
DDC Control Register
(DDCCR)
Write:
DEN
DIEN
Reset: 0
0
0
0
TXAK
0
0
$0019
Read: RXIF
DDC Status Register
(DDCSR)
Write:
0
Reset: 0
TXIF MATCH SRW
0
0
0
0
RXAK
1
$001A
DDC
Data Transmit Register
(DDCDTR)
Read:
Write:
Reset:
DTD7
1
DTD6
1
DTD5
1
DTD4
1
DTD3
1
$001B
DDC
Data Receive Register
(DDCDRR)
Read:
Write:
Reset:
DRD7
0
DRD6
0
DRD5
0
DRD4
0
DRD3
0
Read:
$001C
DDC2 Address Register
(DDC2ADR)
Write:
Reset:
D2AD7
0
D2AD6
0
D2AD5
0
D2AD4
0
D2AD3
0
= Unimplemented
Figure 16-1. DDC I/O Register Summary
2
1
BR2
BR1
0
0
DAD2 DAD1
0
0
SCLIEN DDC1EN
0
SCLIF
0
0
0
TXBE
1
DTD2 DTD1
1
DRD2
1
DRD1
0
0
D2AD2 D2AD1
0
0
Bit 0
BR0
0
EXTAD
0
0
0
RXBF
0
DTD0
1
DRD0
0
0
0
MC68HC908LD64 — Rev. 3.0
Freescale Semiconductor
DDC12AB Interface
Data Sheet
237