mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 579

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

16.7.5.2 SERIAL INTERFACE MODE REGISTER. The 32-bit, memory-mapped,
read/write serial interface mode register (SIMODE) defines the serial interface operation
modes and with serial interface RAM allows you to support any or all of the ISDN channels
independently when in IDL or GCI mode.
SMC2—SMC2 Connection
SMC2CS—SMC2 Clock Source (NMSI mode)
SMC2 can take its clocks from one of the baud rate generators or one of four pins from the
bank of clocks. However, the SMC2 transmit and receive clocks must be the same when
they are connected to NMSI mode.
SMC1—SMC1 Connection
SIMODE
RESET
RESET
FIELD
ADDR
FIELD
ADDR
R/W
R/W
BIT
BIT
0 = NMSI mode. The clock source is determined by the SMC2CS field and the data
1 = SMC2 is connected to the multiplexed serial interface (TDM channel).
000 = SMC2 transmit and receive clocks are BRG1.
001 = SMC2 transmit and receive clocks are BRG2.
010 = SMC2 transmit and receive clocks are BRG3.
011 = SMC2 transmit and receive clocks are BRG4.
100 = SMC2 transmit and receive clocks are CLK1.
101 = SMC2 transmit and receive clocks are CLK2.
110 = SMC2 transmit and receive clocks are CLK3.
111 = SMC2 transmit and receive clocks are CLK4.
0 = NMSI mode. The clock source is determined by the SMC1CS field and the data
1 = SMC1 is connected to the multiplexed serial interface (TDM channel).
comes from a dedicated SMTXD2 and SMRXD2 pin in NMSI mode.
comes from a dedicated pin SMTXD1 and SMRXD1 in NMSI mode.
SMC2
SMC1
R/W
R/W
16
0
0
0
17
1
SMC2CS
SMC1CS
R/W
R/W
18
2
0
0
Freescale Semiconductor, Inc.
For More Information On This Product,
19
3
20
MPC823 REFERENCE MANUAL
4
SDMA
R/W
0
Go to: www.freescale.com
21
5
22
6
(IMMR & 0xFFFF0000) + 0xAE0
(IMMR & 0xFFFF0000) + 0xAE2
RFSDA
R/W
0
23
7
DSCA
R/W
24
8
0
CRTA
R/W
25
9
RESERVED
0
R/W
Communication Processor Module
0
STZA
R/W
10
26
0
CEA
R/W
11
27
0
FEA
R/W
12
28
0
GMA
R/W
13
29
0
14
30
TFSDA
R/W
16-127
0
15
31