PD6710/’22 — ISA-to-PC-Card (PCMCIA) Controllers
Figures
1
System Block Diagram........................................................................................10
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PC Card Controller Form Factor .........................................................................10
PD6710 Pin Diagram .........................................................................................13
PD6722 Pin Diagram ..........................................................................................14
Memory Window Organization............................................................................29
I/O Window Organization ....................................................................................29
Functional Block Diagram ...................................................................................30
Indexed 8-Bit Register Structure.........................................................................37
Indexed 8-Bit Register Example..........................................................................37
Device/Socket/Register Index Space..................................................................42
Pulse Mode Interrupts.........................................................................................71
Selection of Acknowledge Time-out Interval.......................................................80
Example GPSTB Write Port (Extension Control 2 bits 4:3 are ‘10’)....................93
Example GPSTB Read Port (Extension Control 2 bits 4:3 are ‘01’)....................93
VS1# and VS2# Sensing on a PD6722
(Socket B Extension Control 2 bit 3 is ‘1’)...........................................................96
16
DMA Handshake Connections to the ISA Bus
to Make the PD6722 DMA-Capable....................................................................98
Card DMA Request and Acknowledge Handshake with Terminal Count ...........99
Bus Timing — ISA Bus......................................................................................106
Reset Timing.....................................................................................................107
Pulse Mode Interrupt Timing.............................................................................108
General-Purpose Strobe Timing .......................................................................108
Input Clock Specification...................................................................................109
Memory Read/Write Timing ..............................................................................111
Word I/O Read/Write Timing.............................................................................113
PC Card Read/Write Timing When System Is 8-Bit (SBHE Tied High) ............114
Normal Byte Read/Write Timing........................................................................115
16-Bit System to 8-Bit I/O Card: Odd Byte Timing............................................116
DMA Read Cycle Timing...................................................................................117
DMA Write Cycle Timing...................................................................................119
DMA Request Timing........................................................................................120
17
18
19
20
21
22
23
24
25
26
27
28
29
30
6
Datasheet
INTEL [ INTEL ]
