30 PFC_DDD_v1.3.doc
•
TDI:
The input signal is pulled high to save power in low power stop mode. All JTAG
ports have a weak internal TDI pull up.
•
TDO: The output signal is pulled high
Figure 17. JTAG Chain
5.4.7
LEDs
Surface mount 0603 footprints LEDs are provided on each of the MSC8102s, the MSC8101 and the
FPGA.
•
MSC8101 port line PA6 controls MSC8101 LED
•
MSC8102 port line GPIO31 controls MSC8102 LED
•
FPGA pin D3 (IO_82) controls FPGA LED
5.5
PFC Board Configuration
The PFC incorporates 2 banks of switches to enable configuration of the MSC8101 and MSC8102.
The Configuration switch options are detailed below, consult the user guide section for further details
on switch settings. When setting the switches ON = logic 0 and OFF = logic 1.
Table 28. Switch 3 Descriptions
Feature
Description
SW3.1
SW3.2
SW3.3
A_MODCK1
A_MODCK2
A_MODCK3
This sets MSC8101 MODCLK [1:3] and works in
conjunction with the Rest Configuration word to determine
Core/CPM/Bus operating frequencies
SW3.4
MSC8101 Boot Option:
ON = Host Port disabled, Boot from external memory.
OFF= Host Port enabled, Boot from HDI16
SW3.5
IO SEL for MSC8101 UTOPIA/Ethernet multiplexed Selection
ON = UTOPIA
OFF = MII1 Ethernet
SW3.6
SW3.7
M1_BM2
M1_BM1
MSC8102 Boot Sequence options
M1_BM1=ON, M1_BM2= ON => External Memory via 60x bus
M1_BM1=ON, M1_BM2=OFF => DSI Boot
SW3.8 Reset
Configuration
ON = Reset Configuration Master
OFF = Reset Configuration Slave
Table 29. Switch 2 Descriptions
Feature
Description
SW2.1
Configuration Source works in conjunction with SW2.7 (RSTCONF)
SW2.2
SW2.3
MODCK2
MODCK1
This sets MSC8121 MODCLK [1:2] and works in conjunction with
the Reset Configuration word to determine Core/Bus operating
frequencies
3 2 1 0
3 2 1 0
3 2 1 0
3 2 1 0
3 2 1 0
MSC8101
U37
MSC8102(1)
U19
MSC8102(2)
U18
MSC8102(3)
U15
MSC8102(4)
U13
MSC8102(5)
U11
Core ref.
3 2 1 0
3 2 1 0
3 2 1 0
3 2 1 0
3 2 1 0
MSC8101
U37
MSC8102(1)
U19
MSC8102(2)
U18
MSC8102(3)
U15
MSC8102(4)
U13
MSC8102(5)
U11
Core ref.
3 2 1 0
3 2 1 0
3 2 1 0
3 2 1 0
3 2 1 0
MSC8101
U37
MSC8102(1)
U19
MSC8102(2)
U18
MSC8102(3)
U15
MSC8102(4)
U13
MSC8102(5)
U11
Core ref.