CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 156

• Manufacturer Part Number: CS5535-UDCF
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of CS5535-UDCF

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

156
START
Signal
MSIZE
IDSEL
ADDR
SYNC
DATA
TAR
TAR
TAR
TAR
Clock
Cycle
1
1
7
1
2
1
1
1
1
1
31506B
LAD[3:0]
1110b
0000b
1111b
1111b
0000b
1111b
1111b
(float)
(float)
0000
xxxx
xxxx
Peripheral
N/A
I/O
Table 5-28. FWH Write Cycle
O
O
O
I
I
I
I
I
I
Description
On the rising edge of CLK with LFRAME# Low, the contents of
LAD[3:0] indicate the start of an FWH cycle.
Indicates which FWH peripheral is selected. The value on the
LAD[3:0] is compared to the IDSEL strapping on the FWH device
pins to select which device is being addressed.
Note: From Intel(
(determined by ID strapping Pins ID[3:0]) of 0. It is advisable that
subsequent devices use incremental numbering.
A 28-bit address phase is transferred starting with the most signifi-
cant nibble first.
Always 0000b (single byte transfer).
Data transfer is two cycles, starting with least significant nibble.
The LPC host drives LAD[3:0] to 1111b to indicate a turnaround
cycle.
The FWH device takes control of LAD[3:0] during this cycle.
The FWH device drives LAD[3:0] to 0000b to indicate it has
received data or a command.
The FWH device drives LAD[3:0] to 1111b, indicating a turnaround
cycle.
The FWH device floats its output and the LPC host takes control of
LAD[3:0].
R
AMD Geode™ CS5535 Companion Device Data Book
) 82802 spec - the boot device must have an ID
Low Pin Count Port