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CLK
0ns 250ns 500ns 750ns 1000ns 1250ns
FRAME#
GPIO0 SET AS OUTPUT
DATA DATA
AD[31:0] C/BE[3:0]#
IRDY# DEVSEL# TRDY#
LCLK
A D
CMD
BE
A D
CMD
BE
A CMD
BIT[2]=0 A
CMD
BE
BIT[2]=1 BE
LREQ LGNT ADS#
BLAST# LA[27:2]
LAD[31:0] READY#
GPIO[8:0]
GPIO[8:0] PINS ARE OUTPUTS
Note: GPIO pins configured as outputs are driven only when the PCI 9030 owns the Local Bus. (Refer to PCI 9030 Errata #2.)
Timing Diagram 4-4. GPIO[8:0] as Outputs
CLK FRAME# AD[31:0] C/BE[3:0]#
IRDY# DEVSEL# TRDY#
LCLK
0ns 100ns 200ns 300ns 400ns
ADDR D0 D1 D2 D3 CMD BE
LREQ
LGNT ADS#
BLAST#
LA[27:2]
LD[31:0] READY# CS[3:0]#
LBE[3:0]#
WR# RD# LW/R#
ADDR +4 +8 +12 D0 D1 D2 D3
LBE
Note: CS[3:0]# Base Address is in the range of Local Address Spaces 3 through 0.
Timing Diagram 4-5. Chip Select [3:0]# (32-Bit Local Bus)
Serial EEPROM and Configuration Initialization Timing Diagrams
EESK LRESETo#
|
0us 40us 80us 120us
EEDO
START BIT 0 INDICATES SERIAL EEPROM PRESENT ----|
0 D15D14D13D12D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 DEVICE ID (PCIIDR[31:16])
EESK
EEDO
|
PCI STATUS (PCISR[15:0])
CONTINUES
EESK (continues)
EECS
EEDO
LAST WORD (PMDATASCALE[7:0])
CONTINUES
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Note: Serial EEPROM initialization completes in approximately 4.35 ms with a 33.3 MHz PCI clock.
Timing Diagram 4-6. Initialization from Serial EEPROM (2K or 4K Bit)
0ns 50ns 100ns 150ns 200ns 250ns
CLK FRAME# AD[31:0] C/BE[3:0]#
IRDY# DEVSEL# TRDY#
1 2 3
ADDR CMD=B
Data BE
5 6 7 8
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Table 4-1. Response to FIFO Full or Empty | | | Timing Diagram 4-9. PCI Memory Write to Local Configuration Register |