P R E L I M I N A R Y
ISA PLUG AND PLAY PIN SUMMARY (continued)
No. of
Pins
Pin Name
Pin Function
Pin Style
1
1
1
1
TXC
Transmit Clock—may be configured either as input or output
TS1
Low Frequency Power Enable—used to power up the low-frequency section of
the transceiver
LFPE
PTS1
TS1
LFCLK
HFPE
Low Frequency Clock—a reference signal for the transceiver synthesizer
High Frequency Power Enable—used to power up the high-frequency section
of the transceiver
PTS1
1
1
1
HFCLK
ANTSLT
TXCMD
High Frequency Clock—a reference signal for the transceiver synthesizer
Antenna Select—used to select between two antennas
TS1
PTS1
TP1
Transmit Command—used to select the transmit path in the transceiver
Transmit Power Enable—used to power up the transmit section of the
transceiver
1
TXPE
TP1
1
1
1
1
1
1
1
1
3
1
1
TXDATA
TXMOD
RXPE
Transmit Data—supplies the transmit data stream to the transceiver
Transmit Modulation Enable—enables the modulation of transmit data
Receive Power Enable—enables the receive function of the transceiver
Receive Data—accepts receive data in NRZ format from the transceiver
Frame Detect—start of frame delimiter detection indication
TP1
TP1
PTS1
I
RXDATA
FDET
TS1
RXCIN
Receive Clock Input—optional clock input that allows for an external PLL
Serial Data Clock—clock output used to access serial peripheral devices
Serial Data Data—data pin used to access serial peripheral devices
Serial Data Select—chip select outputs used to select serial peripheral devices
Activity LED—output capable of driving an LED
IPU
SDCLK
SDDATA
SDSEL3–SDSEL1
ACT
PTS1
PTS1
PTS1
PTS2
PTS2
LNK
Link LED—output capable of driving an LED
A/D Reference—an input that can be used to set the analog reference voltage
for the internal A/D converter
1
7
ADREF
I
Serial Approximation Register—supplies the value of the serial approximation
register used in the A/D converter
SAR6–SAR0
TS1
2
ADIN1–2
VCC
Comparator—A/D comparator inputs
TS1
12
13
Power
I
I
GND
Ground
Output Driver Types
Name
Type
IOL
IOH
load
50 pF
50 pF
120 pF
50 pF
50 pF
120 pF
120 pF
NA
TP1
TS1
Totem pole
Tri-state
4 mA
–4 mA
–4 mA
–4 mA
–4 mA
–4 mA
–4 mA
–4 mA
NA
4 mA
TS2
Tri-state
24 mA
4 mA
PTS1
PTS2
PTS3
OD2
XO
User-programmable tri-state
User-programmable tri-state
User-programmable tri-state
Open drain
12 mA
24 mA
24 mA
Output
Xtal amplifier
Input Types
Name
I
Type
Size of Pullup
Size of Pulldown
Input
NA
>50K Ω
NA
NA
NA
IPU
IPD
Input with internal pullup device
Input with internal pulldown device
>50K Ω
24
Am79C930
AMD [ AMD ]
