參數(shù)資料
型號(hào): PCI1520-EP
英文描述: Military Enhanced Plastic PC Card Controllers Data Manual
中文描述: 軍事增強(qiáng)塑料PC卡控制器數(shù)據(jù)手冊(cè)
文件頁數(shù): 29/125頁
文件大?。?/td> 716K
代理商: PCI1520-EP
3
1
3 Feature/Protocol Descriptions
The following sections give an overview of the PCI1520. Figure 3
1 shows a simplified block diagram of the PCI1520.
The PCI interface includes all address/data and control signals for PCI protocol. The interrupt interface includes
terminals for parallel PCI, parallel ISA, and serialized PCI and ISA signaling. Miscellaneous system interface
terminals include multifunction terminals: SUSPEND, RI_OUT/PME (power management control signal), and
SPKROUT.
PCI Bus
PCI1520
Activity LEDs
PCI950
IRQSER
Deserializer
IRQSER
3
Interrupt
Controller
INTA
INTB
IRQ2
15
Multiplexer
23
23
PC Card
Socket A
TPS222X
Power Switch
3
PC Card
Socket B
External ZV Port
VGA
Controller
Audio
Subsystem
Zoomed Video
19
4
Zoomed Video
NOTE: The PC Card interface is 68 terminals for CardBus and 16-bit PC Cards. In zoomed video mode 23 terminals are used for routing the
zoomed video signals to the VGA controller and audio subsystem.
68
68
68
68
23
Figure 3
1. PCI1520 Simplified Block Diagram
3.1
Power Supply Sequencing
The PCI1520 contains 3.3-V I/O buffers with 5-V tolerance requiring an I/O power supply and an LDO-VR power
supply for core logic. The core power supply, which is always 2.5 V, can be supplied through the VR_PORT terminal
(when VR_EN is high) or from the integrated LDO-VR. The LDO-VR needs a 3.3-V power supply via the V
CC
terminals. The clamping voltages (V
CCA
, V
CCB
, and V
CCP
) can be either 3.3 V or 5 V, depending on the interface. The
following power-up and power-down sequences are recommended.
The power-up sequence is:
1.
Assert GRST to the device to disable the outputs during power up. Output drivers must be powered up in
the high-impedance state to prevent high current levels through the clamp diodes to the 5-V clamping rails
(V
CCA
, V
CCB
, and V
CCP
).
Apply 3.3-V power to V
CC
.
Apply the clamp voltage.
2.
3.
相關(guān)PDF資料
PDF描述
PCI1620GHK Controller Miscellaneous - Datasheet Reference
PCI1620PDV Controller Miscellaneous - Datasheet Reference
PCI2050A 32-Bit. 66MHz. 9-Master PCI-to-PCI Bridge
PCI2050GHK BUS CONTROLLER
PCI2050PDV BUS CONTROLLER
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