MSC8144ADS Freescale, MSC8144ADS Datasheet - Page 39

• Manufacturer Part Number: MSC8144ADS
• Manufacturer: Freescale

Specifications of MSC8144ADS

• Lead Free Status / RoHS Status: Compliant

5.10
The main clock source is a 66MHz clock oscillator on socket. An external clock can be used
instead of the on-board clock. Other clocking options are: external pulse generator (on the SMB
RF connector), and a programmable clock oscillator used in SHMOO measurement. The
selection between clock sources is done by jumper (JP5). Additional MMCX RF connectors on
several MSC8144 pins allow chip characterization.
5.10.1
The clock circuits generate the clocks for the cores, the internal CLASS buses, the packet
processor, the PCI interface, the TDM, internal memory, the DDR-SDRAM memory controller,
and SERDES interface for the RapidIO controller. The clock generation components and clock
scheme are shown Figure 5-10. The clock circuits are locked, according to the selected clock
mode, when the first stage of the system reset configuration is done (reset configuration is
controlled by the RESET block).
Freescale Semiconductor
24 -23
20 -16
14 -12
11 -10
Bits
9 -4
3 -0
25
22
21
15
Clock Options
RST_SLV
PIN_MUX
Device ID
Clock Distribution
Name
BPRT
PCI
RIO
-
-
Boot Port
Select
PCI Host
Access
RapidIO Host
Access
Reset Slaves
Reserved
Pin
Multiplexing
Device ID
Reserved
Meaning
Table 5-7. RCW High (Continued)
Boot port selected 2.
RCW[13–12].
Boot port select 1–0
(Ethernet/RapidIO/PCI/A
TM)
PCI host disabled
RapidIO host access
disabled.
No reset slaves to be
configured
-
Pin multiplexing 4–2
RCW[11–10].
Pin multiplexing 1–0
RCW[9–4].
Device ID
Reserved
MSC8144ADS MSC8144, Rev. 0
Normal Mode from Boot
Setting
EEPROM
0
0
0
0
00000
0
000
-
-
000
Value
Boot port selected 2
RCW[13–12].
Boot port select PCI
PCI host disabled
RapidIO host access
disabled.
No reset slaves to be
configured
Reserved
Pin multiplexing 4–2
RCW[11–10].
Pin multiplexing 1–0
RCW[9–4].
Device ID
Reserved
Reset Operation and Configuration
RS[0-2] within 011 to 111
Setting
Reduced Mode
0
10
0
0
00000
0
000
-
-
000
Value
5-15