參數(shù)資料
型號(hào): PCI1620PDV
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項(xiàng)-數(shù)據(jù)表參考
文件頁數(shù): 33/164頁
文件大?。?/td> 720K
代理商: PCI1620PDV
2
17
Table 2
11. CardBus PC Card Interface System Terminals (Slots A and B)
TERMINAL
NUMBER
I/O
DESCRIPTION
NAME
SLOT A
PDV
SLOT B
PDV
GHK
GHK
CCLK
115
M14
48
P06
O
CardBus clock. CCLK provides synchronous timing for all transactions on the
CardBus interface. All signals except CRST, CCLKRUN, CINT, CSTSCHG, CAUDIO,
CCD2, CCD1, CVS2, and CVS1 are sampled on the rising edge of CCLK, and all
timing parameters are defined with the rising edge of this signal. CCLK operates at
the PCI bus clock frequency, but it can be stopped in the low state or slowed down
for power savings.
CCLKRUN
142
H15
74
R09
I/O
CardBus clock run. CCLKRUN is used by a CardBus PC Card to request an increase
in the CCLK frequency, and by the PCI1620 to indicate that the CCLK frequency is
going to be decreased.
CRST
126
L15
58
W05
O
CardBus reset. CRST brings CardBus PC Card-specific registers, sequencers, and
signals to a known state. When CRST is asserted, all CardBus PC Card signals are
placed in a high-impedance state, and the PCI1620 drives these signals to a valid
logic level. Assertion can be asynchronous to CCLK, but deassertion must be
synchronous to CCLK.
Terminal name for slot A is preceded with A_. For example, the full name for terminals 115 and M14 are A_CCLK.
Terminal name for slot B is preceded with B_. For example, the full name for terminals 48 and P06 are B_CCLK.
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