Z86M1720ASG Zilog, Z86M1720ASG Datasheet - Page 54
Z86M1720ASG
Manufacturer Part Number
Z86M1720ASG
Description
IC PCMCIA INTERFACE 100-VQFP
Manufacturer
Zilog
Datasheet
1.Z86M1720ASG.pdf
(138 pages)
Specifications of Z86M1720ASG
Applications
*
Interface
*
Voltage - Supply
*
Package / Case
*
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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40
PS012002-1201
Bit Placement
Bit 6
Bit 7
Z86017/Z16017 PCMCIA Interface Solution
Product Specification
Table 13.
Bit Name
CCR0_OVERIDE
EN_INPACK
Interrupt Enable Register: Address 01h (Continued)
Description
ATA_DASP is used as a DASP pin. Also see Register 02h.
Card Con•guration Register 0 is normally written after
Power-On Reset by the PCMCIA host. If Interrupts are
allowed by the local processor or EEPROM, then the
PCMCIA READY/BSY signal is configured as an
interrupt signal only when the Card Configuration Register
is written. If the local processor does not require the
PCMCIA host to write to CCR0, bit CCR0_OVERIDE can
be set to force the internal logic to select the PCMCIA
READY/BSY as the Interrupt pin, if interrupts are enabled.
This bit is active when set to 1. On Power-On Reset, set
this bit to 0, no override selected. PCMCIA host must
select interrupts and write to the Card Con•guration
Register 0.
Enable PCMCIA Input acknowledge when set to 1. On
Power-On Reset, this bit is set to 0.
Programming Internal Registers
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