參數(shù)資料
型號: CL-PS6700
廠商: Cirrus Logic, Inc.
英文描述: Low-Power PC Card Controller for the CL-PS7111
中文描述: 低功耗PC卡控制器的CL - PS7111
文件頁數(shù): 26/48頁
文件大?。?/td> 562K
代理商: CL-PS6700
PRELIMINARY DATA BOOK v1.0
November 1997
26
REGISTERS
C
I R R U S
L
O G I C
C
O N F I D E N T I A L
, N D A R
E Q U I R E D
CL-PS6700
Low-Power PC Card Controller
4.4
System Interface Registers
4.4.1
System Interface Configuration Register
(0X0C002000
)
Bit(s)
Description
Default R/W
15:10
Reserved
9
Enable Active Pull-up on Open-Drain Interrupt Outputs PIRQ_L[1:0].
During Standby,
active pull-up is disabled.
0
R/W
8
Enable Assembly and Disassembly.
If this bit is set, assembly and disassembly of card
accesses by CPU or DMA is allowed. When this bit is cleared, the card transaction size is lim-
ited to the width of the card defined by the Card Interface Configuration register bit 7.
1
R/W
7
Enable Handshake Using Card Ready Signal.
When this bit is set, a low-level on PCM_RDY
prevents access to the card. When this bit is cleared, RDY is ignored, but can still generate
interrupts.
1
R/W
6
Report Read Failure.
When this bit is set, a read failure generates an RD_FAIL interrupt.
Read failure can occur due to a time-out condition. Normally, this bit should be cleared so the
CL-PS7111 reports read failures.
1
R/W
5
Endian Conversion Enable.
0 – Disable byte swapping
1 – Enable byte swapping
PC Cards are defined as little–endian, while the ARM CPU inside the CL-PS7111 can be
big–endian or little–endian.
1
R/W
4
Transaction Queue Enable.
When this bit is set, it enables queuing one or more CL-PS7111
write operations. If this bit is cleared, then PRDY goes low after a write until the write is com-
plete.
1
R/W
3
Transaction Queue Threshold Control.
0 – FIFO THLD interrupt when two entries are free in queue.
1 – FIFO THLD interrupt when four entries are free in queue.
1
R/W
2
Transaction Queue Flush.
Discard data in queue.
0
R/W
1:0
Reserved
00
R/W
相關(guān)PDF資料
PDF描述
CL-PS6700-VC-A Low-Power PC Card Controller for the CL-PS7111
CL-PS7110-VC-A Low-Power System-on-a-Chip
CL-PS7110-VI-A Low-Power System-on-a-Chip
CL-PS7110 Low-Power System-on-a-Chip
CL-PS7111 Low-Power System-on-a-Chip
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CL-PS6700-VC-A 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Low-Power PC Card Controller for the CL-PS7111
CL-PS7110 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Low-Power System-on-a-Chip
CL-PS7110-VC-A 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Low-Power System-on-a-Chip
CL-PS7110-VI-A 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Low-Power System-on-a-Chip
CL-PS7111 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Low-Power System-on-a-Chip