
Hardware Description
MFC 2000 Multifunctional Peripheral Controller 2000
100723A
Conexant
3-3
Table 3-1. Pin Description (3 of 6)
Pin Name
Pin No.
I/O
Input
Type
Output
Type
Pin Description
GPIO[6]/CS[4]n/ EADC_D[3]
U1
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[6] or I/O chip select [4] (active
low) or external ADC data [3] input
GPIO[7]/CS[5]n/
T4
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[7] or I/O chip select [5] (active
low).
GPIO[8]/IRQ[11]/
SSSTAT1/SC_CLK1/2B
T3
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[8] or external interrupt [11] or
status input for SSIF1 or scan clock output
GPIO[9]/IRQ[13]/ EADC_D[2]
T2
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[9] or external interrupt [13] or
external ADC data [2] input
GPIO[10]/RING_DETECT/PW
M[4]
T1
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[10] or ring detection input or
PWM channel 4 output
GPIO[11]/CPCIN/PWM[0]/ALT
TONE
R4
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[11] or calling party control input
or ALTTONE output
GPIO[12]/SASCLK/
SMPWRCTRL
R3
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[12] or clock input/output for
SASIF or Scan Motor Power Control output
GPIO[13]/SASTXD/
PMPWRCTRL
R2
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[13] or TX data output for SASIF
or Print Motor Power Control output
GPIO[14]/SASRXD/ RINGER
R1
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[14] or RX data input for SASIF
or ringer output
GPIO[15]/IRQ[16]/
SC_CLK1/2C
P4
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[15] or external interrupt [16] or
scan clock output
GPIO[16]/M_TXSIN
P3
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[16] or internal modem
GPIO[17]/M_CLKIN
P2
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[17] or internal modem
GPIO[18]/M_RXOUT
P1
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[18] or internal modem
GPIO[19]/M_SCK/MIRQn
N4
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[19] or internal modem or
external modem interrupt input
GPIO[20]/M_STROBE/ MCSn
N3
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[20] or internal modem or
external modem chip select
GPIO[21]/M_CNTRL_SIN
N2
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[21] or internal modem
GPIO[22]/EADC_Sample
N1
I/O
H5VT
2XT5VT
(Hysteresis) GPIO[22] or external ADC sample
signal output
SM[3:0]/
GPO[7:4]
V7,W7,Y7,U6
O
-
1XT3V
Scan motor control [3:0] pins or GPO[7:4] pins.
PM[0]/SPI_SID/
EADC_D[0]/GPO[0]
U8
I/O
5VT
1XT5VT
Print motor control [0] output or GPO[0] output or
data output for SPI or external ADC data [0] input
PM[1]/SPI_SIC/
EADC_D[1]/GPO[1]
W9
I/O
5VT
1XT5VT
Print motor control [1] output or GPO[1] output or
clock output for SPI or external ADC data [1] input
PM[2]/SMI0/GPO[2]
Y9
O
-
1XT3V
Print motor control [2] output or GPO[2] output or
scan motor current control 0.
PM[3]/SMI1/GPO[3]
Y12
O
-
2XT3V
Print motor control [3] output or GPO[3] output or
scan motor current control 1.
TONE
V9
I/O
H5VT
1XT5VT
(Hysteresis) Tone output signal.
PIODIR
C1
O
-
2XT3V
PIOD[7:0] is output when PIODIR is high and
PIOD[7:0] is input when PIODIR is low.
STROBEn
A2
I
H5VT
-
(Hysteresis) Input from PC (active low)
AUTOFDn
G3
I
H5VT
-
(Hysteresis) Input from PC (active low)
SLCTINn
G2
I
H5VT
-
(Hysteresis) Input from PC (active low)
INITn
G1
I
H5VT
-
(Hysteresis) Input from PC (active low)
BUSY
A1
O
-
2XT3V
PIO Returned status to PC
ACKn
D3
O
-
2XT3V
PIO Returned status to PC (active low)