MiTAC MiNote 7321, Руководство по обслуживанию

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7321 N/B Maintenance 7321 N/B Maintenance
5.4 PC Card Interface controller
TERMINAL
NO.
SLOT A† SLOT B‡
NAME
PDV GHK PDV GHK
I/O DESCRIPTION
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
93
91
89
87
84
147
145
142
92
90
88
85
83
146
144
141
U13
W13
P12
V12
P11
F19
G17
H15
V13
R12
U12
R11
U11
G14
G18
H14
27
25
23
20
18
81
79
77
26
24
21
19
17
80
78
76 K5
K2
J6
J2
H1
W11
R10
V10
K3
K1
J3
J1
H2
P10
U10
W10
I/O
PC Card data. 16-bit PC Card data lines. D15 is the
most significant bit.
† Terminal name for slot A is preceded with A_. For example, the full name for terminals 121 and
M18 are A_A25.
‡ Terminal name for slot B is preceded with B_. For example, the full name for terminals 55 and R6
are B_A25.
16-Bit PC Card Interface Control (Slots A and B)
TERMINAL
NO.
SLOT A† SLOT B‡
NAME
PDV GHK PDV GHK
I/O DESCRIPTION
BVD1
(STSCHG/RI) 138 H19 72 V9 I Battery voltage detect 1. BVD1 is generated by
16-bit memory PC Cards that include batteries.
BVD1 is used with BVD2 as an indication of the
condition of the batteries on a memory PC Card.
Both BVD1 and BVD2 are high when the battery
is good. When BVD2 is low and BVD1 is high,
the battery is weak and should be replaced. When
BVD1 is low, the battery is no longer serviceable
and the data in the memory PC Card is lost. See
Section 5.6, ExCA Card Status-Change-Interrupt
Configuration Register, for enable bits.
Status change. STSCHG is used to alert the
system to a change in the READY, write protect,
or battery voltage dead condition of a 16-bit I/O
PC Card. Ring indicate. RI is used by 16-bit
modem cards to indicate a ring detection.
TERMINAL
NO.
SLOT A† SLOT B‡
NAME
PDV GHK PDV GHK
I/O DESCRIPTION
BVD2(SPKR) 137 J15 71 W9 I Battery voltage detect 2. BVD2 is generated by
16-bit memory PC Cards that include batteries.
BVD2 is used with BVD1 as an indication of the
condition of the batteries on a memory PC Card.
Both BVD1 and BVD2 are high when the battery
is good. When BVD2 is low and BVD1 is high,
the battery is weak and should be replaced. When
BVD1 is low, the battery is no longer serviceable
and the data in the memory PC Card is lost. See
Section 5.6, ExCA Card Status-Change-Interrupt
Configuration Register, for enable bits.
Speaker. SPKR is an optional binary audio signal
available only when the card and socket have
been configured for the 16-bit I/O interface. The
audio signals from cards A and B are combined
by the PCI1420 and are output on SPKROUT.
DMA request. BVD2 can be used as the DMA
request signal during DMA operations to a 16-bit
PC Card that supports DMA. The PC Card
asserts BVD2 to indicate a request for a DMA
operation.
CD1
CD2 82
140
V11
H17 16
74 H3
R9 I Card detect 1 and Card detect 2. CD1 and CD2
are internally connected to ground on the PC
Card. When a PC Card is inserted into a socket,
CD1 and CD2 are pulled low.
CE1
CE2 94
97 P13
R13
28
30 K6
L2
O Card enable 1 and card enable 2. CE1 and CE2
enable even- and odd-numbered address bytes.
CE1 enables even-numbered address bytes, and
CE2 enables odd-numbered address bytes.
INPACK 127 L14 61 R7 I Input acknowledge. INPACK is asserted by the
PC Card when it can respond to an I/O read cycle
at the current address.
DMA request. INPACK can be used as the DMA
request signal during DMA operations from a
16-bit PC Card that supports DMA. If it is used
as a strobe, then the PC Card asserts this signal to
indicate a request for a DMA operation.
5. Pin Descriptions of Major Components