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參數(shù)資料
| 型號： | PCI4510PDV |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | PC CARD AND INTEGRATED 1394A-2000 OHCI TWO PORT PHY/LINK LAYER CONTROLLER |
| 中文描述： | PC卡和綜合1394A端口- 2000 OHCI的兩個(gè)端口物理層/鏈路層控制器 |
| 文件頁數(shù)： | 38/220頁 |
| 文件大小： | 1356K |
| 代理商： | PCI4510PDV |
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Table 213. 16-Bit PC Card Interface Control Terminals
TERMINAL
NAME
NUMBER
GHK
I/O
DESCRIPTION
PDV
RGVF
BVD1
(STSCHG/RI)
185
A09
B02
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 must 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.
See Section 5.5,
ExCA Card Status-Change Register
, and Section 5.2,
ExCA Interface
Status Register
, for the status bits for this signal.
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.
BVD2
(SPKR)
184
F10
A02
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 must 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.
See Section 5.5,
ExCA Card Status-Change Register
, and Section 5.2,
ExCA Interface
Status Register
, for the status bits for this signal.
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 PCI4510 device and are output on SPKROUT.
CD1
CD2
125
187
L17
C09
C15
E05
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. For signal
status, see
Section 5.2,
ExCA Interface Status Register
.
CE1
CE2
137
140
J15
H17
G12
B12
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
173
B12
E07
I
Input acknowledge. INPACK is asserted by the PC Card when it can respond to an I/O read
cycle at the current address.
IORD
144
G18
C11
O
I/O read. IORD is asserted by the PCI4510 device to enable 16-bit I/O PC Card data output
during host I/O read cycles.
IOWR
145
G17
E11
O
I/O write.
IOWR is driven low by the PCI4510 device to strobe write data into 16-bit I/O PC
Cards during host I/O write cycles.
OE
141
H14
C12
O
Output enable. OE is driven low by the PCI4510 device to enable 16-bit memory PC Card
data output during host memory read cycles.
READY
(IREQ)
182
C10
C04
I
Ready. The ready function is provided by READY when the 16-bit PC Card and the host
socket are configured for the memory-only interface. READY is driven low by 16-bit memory
PC Cards to indicate that the memory card circuits are busy processing a previous write
command. READY is driven high when the 16-bit memory PC Card is ready to accept a new
data transfer command.
Interrupt request. IREQ is asserted by a 16-bit I/O PC Card to indicate to the host that a
device on the 16-bit I/O PC Card requires service by the host software. IREQ is high
(deasserted) when no interrupt is requested.
REG
176
B11
C05
O
Attribute memory select. REG remains high for all common memory accesses. When REG
is asserted, access is limited to attribute memory (OE or WE active) and to the I/O space
(IORD or IOWR active). Attribute memory is a separately accessed section of card memory
and is generally used to record card capacity and other configuration and attribute
information.
RESET
169
B13
A06
O
PC Card reset. RESET forces a hard reset to a 16-bit PC Card.
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