CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 41
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CS5535-UDCF
Manufacturer Part Number
CS5535-UDCF
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet
1.CS5535-UDCF.pdf
(579 pages)
Specifications of CS5535-UDCF
Operating Temperature (min)
0C
Operating Temperature (max)
85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
Available stocks
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Quantity
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Part Number:
CS5535-UDCF
Manufacturer:
AMD
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Signal Definitions
3.2.3.1
AMD Geode™ CS5535 Companion Device Data Book
Signal Name
IDE_DATA[15:0]
IDE_IOR0#
IDE_IOW0#
IDE_CS0#
IDE_CS1#
IDE_DREQ0
IDE_DACK0#
IDE_RDY0
IDE Interface Signals (Continued)
C17, D16,
C16, C15,
C14, B15,
B16, A17,
D17, E17,
E16, E15,
D15, B17,
A15, B14
Ball No.
C13
C10
C12
B13
B10
A14
A13
Type
I/O
O
O
O
O
O
I
I
Description
IDE Data Lines. IDE_DATA[15:0] transfers data to/from the IDE
devices.
IDE I/O Read. This output is asserted on read accesses to corre-
sponding IDE port addresses.
When in Ultra DMA/33 mode, this signal is redefined:
• IDE_HDMA_RDY. Host DMA Ready for Ultra DMA data-in bursts.
• IDE_HDMA_DS. Host DMA Data Strobe for Ultra DMA data-out
IDE I/O Write. This output is asserted on write accesses to corre-
sponding IDE port addresses.
When in Ultra DMA/33 mode, this signal is redefined:
• IDE_STOP - Stop Ultra DMA data burst.
IDE Chip Select 0. This chip select signal is used to select the Com-
mand Block registers in IDE Device 0.
IDE Chip Select. This chip select signal is used to select the Com-
mand Block registers in IDE Device 1.
DMA Request. The DREQ input is used to request a DMA transfer
from the Geode CS5535 companion device. The direction of the trans-
fers are determined by the IDE_IOR0# and IDE_IOW0# signals.
Note:
DMA Acknowledge. The DACK# output acknowledges the
IDE_DREQ0 request to initiate DMA transfers.
I/O Ready. When de-asserted, this signal extends the transfer cycle of
any host register access when the device is not ready to respond to the
data transfer request.
When in Ultra DMA/33 mode, this signal is redefined:
• IDE_DDMA_DS - Device DMA Data Strobe for Ultra DMA data-in
• IDE_DDMA_RDY - Device DMA Ready for Ultra DMA data-out
bursts.
bursts.
bursts.
Ball A14 is the only ball that changes direction from IDE to
Flash (input when in IDE mode, output when in Flash mode). If
this interface is to be switched between IDE and Flash modes,
the IDE interface must only use PIO mode and ball A14
requires a pull-up resistor to keep FLASH_CS3# high when in
IDE mode.
31506B
41
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