参数资料
型号: CS497024-CVZR
厂商: CIRRUS LOGIC INC
元件分类: 消费家电
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP128
封装: LEAD FREE, LQFP-128
文件页数: 9/19页
文件大小: 454K
代理商: CS497024-CVZR
CS4970x4 Data Sheet
32-bit High Definition Audio Decoder DSP Family
DS752PP10
17
Figure 7. Parallel Control Port - Intel Slave Mode Read Cycle
Figure 8. Parallel Control Port - Intel Slave Mode Write Cycle
PCP_CS or PCP_WR high to PCP_CS and PCP_RD low for next
read1
tiwtrd
30
ns
PCP_CS or PCP_WR high to PCP_CS and PCP_WR low for next
write1
tiwd
30
ns
PCP_WR rising to PCP_BSY falling
tiwrbsyl
2*DCLKP + 20
ns
1. The system designer should be aware that the actual maximum speed of the communication port may be limited by the firmware
application. Hardware handshaking on the PCP_
BSY pin/bit should be observed to prevent overflowing the input data buffer.
CS4953x4/CS4970x4 System Designer’s Guide should be consulted for the firmware speed limitations.
Parameter
Symbol Min
Typical
Max
Unit
PCP_A[3:0]
PCP_D[7:0]
t ias
t icdr
t iah
t idd
t irpw
t idhr
t idis
t ird
t irdtw
PCP_CS#
PCP_WR#
PCP_RD#
PCP_IRQ#
tirdirqh
LSP
MSP
t ias
t icdw
t iah
t iwpw
t idhw
t iwd
t iwtrd
t idsu
tiwrbsyl
PCP_D[7:0]
PCP_CS#
PCP_WR#
PCP_RD#
PCP_A[3:0]
PCP_BSY#
LSP
MSP
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