Datasheet

Functional Description
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
Freescale Semiconductor 185
Addr.Register Name Bit 7654321Bit 0
$0009
ESCI Prescaler Register
(SCPSC)
See page 206.
Read:
PDS2 PDS1 PDS0 PSSB4 PSSB3 PSSB2 PSSB1 PSSB0
Write:
Reset:00000000
$000A
ESCI Arbiter Control
Register (SCIACTL)
See page 209.
Read:
AM1
ALOST
AM0 ACLK
AFIN ARUN AROVFL ARD8
Write:
Reset:00000000
$000B
ESCI Arbiter Data
Register (SCIADAT)
See page 210.
Read: ARD7 ARD6 ARD5 ARD4 ARD3 ARD2 ARD1 ARD0
Write:
Reset:00000000
$0013
ESCI Control Register 1
(SCC1)
See page 196.
Read:
LOOPS ENSCI TXINV M WAKE ILTY PEN PTY
Write:
Reset:00000000
$0014
ESCI Control Register 2
(SCC2)
See page 198.
Read:
SCTIE TCIE SCRIE ILIE TE RE RWU SBK
Write:
Reset:00000000
$0015
ESCI Control Register 3
(SCC3)
See page 200.
Read: R8
T8 R R ORIE NEIE FEIE PEIE
Write:
Reset:U0000000
$0016
ESCI Status Register 1
(SCS1)
See page 201.
Read: SCTE TC SCRF IDLE OR NF FE PE
Write:
Reset:11000000
$0017
ESCI Status Register 2
(SCS2)
See page 203.
Read:000000BKFRPF
Write:
Reset:00000000
$0018
ESCI Data Register
(SCDR)
See page 204.
Read: R7 R6 R5 R4 R3 R2 R1 R0
Write: T7 T6 T5 T4 T3 T2 T1 T0
Reset: Unaffected by reset
$0019
ESCI Baud Rate Register
(SCBR)
See page 204.
Read:
LINT LINR SCP1 SCP0 R SCR2 SCR1 SCR0
Write:
Reset:00000000
= Unimplemented R = Reserved U = Unaffected
Figure 15-3. ESCI I/O Register Summary