MVME3100 Programmer’s Guide (V3100A/PG1)
Chapter 2 Programming Details
26
LA [28:31]
PLD logic
0011 for
100 MHz
PCI bus
0101 for
66 MHz
PCI bus
CCB Clock PLL
Ratio (CCB Clock :
SYSCLK)
0000
16:1
0010
2:1
0011
3:1
0100
4:1
0101
5:1
0110
6:1
1000
8:1
1001
9:1
1010
10:1
1100
12:1
LWE [0:1] _L 4
Resistors
11
PCI Output Hold
Configuration
00
1 added buffer delay
01
0 added buffer delays
10
3 added buffer delays
11
2 added buffer delays
5
11
PCI-X Output Hold
Configuration
00
3 added buffer delays
01
2 added buffer delays
10
1 added buffer delay
11
0 added buffer delays
6
LWE [2:3] _L
Resistors
11
MPC8540
Host/Agent
Configuration
00
Agent of RapidIO and
PCI/PCI-X
01
Agent of a RapidIO
10
Agent of a PCI/PCI-X
11
Host of both RapidIO
and PCI/PCI-X
LALE, LGPL2
Resistor
01
e500 Core Clock
PLL Ratio (e500
Core : CCB Clock)
00
2:1
01
5:2
10
3:1
11
7:2
LGPL0, LGPL1
Fixed
11
RapidIO Transmit
Clock Source
00
Reserved
01
RapidIO rcv clock is
source of xmit clock
10
RapidIO xmit clock
inputs are source of
xmit clock
11
CCB clock is source of
xmit clock
Table 2-1. MPC8540 Power-on Reset Configuration Settings (continued)
MPC8540 Signal
Select Option
Default
Setting
Description
State of Bit vs Function
1