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HFA3842 Datasheet(PDF) 3 Page - Intersil Corporation

Part No. HFA3842
Description  Wireless LAN Medium Access Controller
Download  26 Pages
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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HFA3842 Datasheet(HTML) 3 Page - Intersil Corporation

 
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HFA3842 Pin Descriptions
HOST INTERFACE PINS
PIN NAME
PIN NUMBER
PIN I/O TYPE
DESCRIPTION
HA0-9
106-113, 117, 118 5V Tol, CMOS, Input, 50K Pull Down
PC Card Address Input, Bits 0 to 9
HCE1-
1
5V Tol, CMOS, Input, 50K Pull Up
PC Card Select, Low Byte
HCE2-
122
5V Tol, CMOS, Input, 50K Pull Up
PC Card Select, High Byte
HD0-15
101-99, 6-2,
96-94, 128-125,
123
5V Tol, BiDir, 2mA, 50K Pull Down
PC Card Data Bus, Bit 0 to 15
HINPACK-
103
CMOS Output, 2mA
PC Card I/O Decode Confirmation
HIORD-
120
5V Tol, CMOS, Input, 50K Pull Up
PC Card I/O Space Read
HIOWR-
119
5V Tol, CMOS, Input, 50K Pull Up
PC Card I/O Space Write
HRDY/HIREQ-
114
CMOS Output, 4mA
PC Card interrupt Request (I/O Mode) Card Ready
(Memory Mode)
HOE-
121
5V Tol, CMOS, Input, 50K Pull Up
PC Card Memory Attribute Space Output Enable
HREG-
102
5V Tol, CMOS, Input, 50K Pull Up
PC Card Attribute Space Select
HRESET
16
5V Tol, CMOS, ST Input, 50K Pull Up
Hardware Reset
HSTSCHG-
36
CMOS Output, 4mA
PC Card Status Change
HWAIT-
104
CMOS Output, 4mA
PC Card Not Ready (Force Host Wait State)
HWE-
116
5V Tol, CMOS Input, 50K Pull Up
PC Card Memory Attribute Space Write Enable
TABLE 1. MEMORY INTERFACE PINS
PIN NAME
PIN NUMBER
PIN I/O TYPE
DESCRIPTION
MUBE- / MA0 /
MWEH-
72
CMOS TS Output, 2mA
MBUS Upper Byte Enable for x16 Memory; MBUS
Address Bit 0 (byte) for x8 Memory; High Byte Write
Enable for 2 x8 Memories
MA1-18
73-81, 84-92
CMOS TS Output, 2mA
MBUS Address Bits 1 to 18
PL4
43
CMOS BiDir, 2mA
MBUS Address Bit 19
PL5
12
CMOS BiDir, 2mA, 50K Pull Up
MBUS Address Bit 20
PL6
11
CMOS BiDir, 2mA
MBUS Address Bit 21
MLBE-
62
CMOS TS Output, 2mA, 50K Pull Up
MBUS Lower Byte Enable, or I/O as PM2
MOE-
70
CMOS TS Output, 2mA
Memory Output Enable
MWE- / MWEL-
71
CMOS TS Output, 2mA
Low (or only) Byte Memory Write Enable
RAMCS-
69
CMOS TS Output, 2mA
RAM Select
NVCS-
68
CMOS TS Output, 2mA
NV Memory Select
MD0-7
61-54
5V Tol, CMOS, BiDir, 2mA, 100K Pull Up
MBUS Low Data Byte, Bits 0 to 7
MD8-15
51-44
5V Tol, CMOS, BiDir, 2mA 50K Pull Down
MBUS High Data Byte, Bits 8 to 15
1
.
2
.
TABLE 2. GENERAL PURPOSE AND EEPROM PORT PINS
PIN NAME
PIN NUMBER
PIN I/O TYPE
DESCRIPTION OF FUNCTION
(IF OTHER THAN IO PORT)
GENERAL PURPOSE PORT PINS
TXD
17
CMOS BiDir, 2mA, 50K Pull Down
Transmit Data Out
TXC
18
CMOS BiDir, 2mA
Transmit Clock In/Out
RXD
19
CMOS Input
Receive Data In
RXC
20
CMOS Input
Receive Clock In
HFA3842


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