Nortel Networks MSC8101 ADS Network Card User Manual


 
MOTOROLA MSC8101ADS RevB User’s Manual 35
Operating Instructions
PPC Bus SDRAM Controller
GPCM (Flash, BCSR, ATM, Ext. Tools)
UPM (QFALC, Ext. Tools)
2) Communication functions which include:
ATM SAR
Fast Ethernet controller.
TDMs for T1/E1 and CODEC support
UART for terminal or host computer connection.
The internal registers of the MPC must be programmed after Hard reset as described in the
following paragraphs. The addresses and programming values are in Hexadecimal base.
For better understanding the of the following initialization refer to the
4•5•1 System Initialization
Hard Reset Config. Word is programmed in Flash according to TABLE 5-2. "Hard Reset Configu-
ration Word" on page 40.
4•5•1•1 Memory Controller Registers Programming
The memory controller on the MSC8101ADS is initialized to 50/100 MHz operation. I.e., registers’
programming is based on 50/100 MHz timing calculation.
TABLE 4-3. SIU Registers’ Programming
Register Init Value[hex] Description
RMR 0001 Check-Stop Reset enabled.
IMMR 14700000 Internal space begins from 0x1470_0000
SYPCR FFFFFFC3 Software watchdog timer count - FFFF, Bus-monitor timing FF, PPC Bus-monitor -
Enabled, Local Bus-monitor - Enabled, S/W watch-dog - disabled, S/W watch-dog
(if enabled) causes reset, S/W watch-dog (if enabled) - prescaled.
BCR 0000_0000 Single MSC8101, 0 wait-states on address tenure, 1-level Pipeline depth,
Extended transfer mode disabled for PCC & Local Buses, Odd parity for PPC &
Local Buses (not relevant for this application, External Master delay enabled,
Internal space responds as 64 bit slave for external master (not relevant for this
application).
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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