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(yè)數(shù): 54/164頁(yè)
文件大小: 720K
代理商: PCI1620PDV
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3
12
Table 3
7. Terminals With Integrated Pullup Resistors
TERMINAL NUMBER
SOCKET A
SIGNAL NAME
SOCKET B
PDV
GHK
PDV
GHK
A14 // CPERR
109
R18
42
N06
A15 // CIRDY
117
N18
50
P05
A19 // CBLOCK
108
N14
41
N03
A20 // CSTOP
111
P17
44
P02
A21 // CDEVSEL
113
N15
46
P03
A22 // CTRDY
116
141
N17
H14
49
73
R02
U09
BVD1(STSCHG) // CSTSCHG
BVD2(SPKR) // CAUDIO
140
H17
72
V09
CD1 // CCD1
83
U11
15
H05
CD2 // CCD2
144
G18
75
P09
INPACK // CREQ
130
K17
61
R07
READY // CINT
138
H19
69
V08
RESET // CRST
126
L15
58
W05
VS1 // CVS1
137
J15
68
U08
VS2 // CVS2
124
L18
56
P07
WAIT // CSERR
139
H18
71
W09
WP(IOIS16) // CCLKRUN
These terminals have both pullup and pulldown resistors.
142
H15
74
R09
3.5.7
SPKROUT Usage
The SPKROUT terminal carries the digital audio signal from the PC Card to the system. When a 16-bit PC Card is
configured for I/O mode, the BVD2 terminal becomes the SPKR input terminal from the card. This terminal, in
CardBus applications, is referred to as CAUDIO. SPKR passes a TTL-level binary audio signal to the PCI1620. The
CardBus CAUDIO signal also can pass a single-amplitude binary waveform as well as a PWM signal. The binary
audio signal from each PC Card sockets is enabled by the SPKROUTEN bit (bit 1) of the card control register (PCI
offset 91h, see Section 4.40).
Older controllers support CAUDIO in binary or PWM mode but use the same output terminal (SPKROUT). Some
audio chips may not support both modes on one terminal and may have a separate terminal for binary and PWM.
The PCI1620 implementation includes a signal for PWM, CAUDPWM, which can be routed to an MFUNC terminal.
Bit 2 (AUD2MUX), located in the card control register, is programmed on a per-socket function basis to route a
CardBus CAUDIO PWM terminal to CAUDPWM. If both CardBus functions enable CAUDIO PWM routing to
CAUDPWM, then socket A audio takes precedence. See Section 4.38,
Multifunction Routing Register
, for details on
configuring the MFUNC terminals.
Figure 3
8 illustrates the SPKROUT connection.
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