MMCCMB2103UM/D
User’s Manual
41
MAPI Connectors (P1/J1, P2/J2, P3/J3, P4/J4)
Table 4-1 MAPI Connector P1/J1 Signal Descriptions
Pin
Mnemonic
Signal
100, 98, 96 —
93, 91, 88 — 75,
72, 70 — 63, 61,
56, 54, 50, 39,
38, 36, 24 — 13,
11, 9 — 3, 1
PTJ1[x]
Pass through.
99, 60, 59,
VDD3V
+3.3-volt power
97
CS_b[4]
CHIP SELECT (line 4) – Active-low output line that provides a chip select to
external devices.
92, 89, 74, 71,
58, 52, 46, 41,
40, 28
GND
GROUND
90
VDD5V
+5-volt power.
73
DVSP_b[0]
DEVELOPMENT SPACE (line 0) — Active-low signal indicating that the current
memory cycle is addressing on-board devices.
62
IRQ_b[0]
INTERRUPT REQUEST — Active-low output indicating that the processor core
is servicing an internal interrupt.
58, 52, 40, 34
MID[0] — MID[3]
MID (identification code) lines 0—3 — Signals that identify the host processor
board.
57, 53
TXD[1], TXD[2]
TRANSMIT SERIAL DATA (lines 1, 2) — Output signals.
55, 51
RXD[1], RXD[2]
RECEIVE SERIAL DATA (lines 1, 2) — Input signals.
49, 47, 45, 43
PCS[0] — PCS[3] PERIPHERAL CHIP SELECTS (lines 0—3) — Chip-select lines for peripheral
devices.
48
SCK
SERIAL CLOCK — If SPI is enabled, the serial clock signal. If SPI is disabled, a
general-purpose port E I/O signal.
44
MOSI
MASTER OUT/SLAVE IN — If SPI is enabled, the data master-out/slave-in
signal. If SPI is disabled, a general-purpose port E I/O signal.
42
MISO
MASTER IN/SLAVE OUT — If SPI is enabled, the data master-in/slave-out
signal. If SPI is disabled, a general-purpose port E I/O signal.
37, 35
MPWM[3],
MPWM[19]
PULSE WIDTH MODULATOR (lines 3, 19) — Outputs.
34
IDVDD
IDENTIFICATION POWER — Special 3-volt power signal, from an external
source, for the identification code (MID) signals.
33, 31, 29, 27
MDA[12],
MDA[14],
MDA[28],
MDA[30]
MIOS DOUBLE ACTION (lines 12, 14, 28, 30) — Signals for the MIOS timer
block.
32
TXDLCAN0
TRANSMIT CAN DATA (line 0) — CAN-protocol output signal.
30
RXDLCAN
RECEIVE CAN DATA — CAN-protocol input signal.
26, 25, 12
GND1
GROUND — Connection to the GROUND 1 plane.
10, 2
GND2
GROUND — Connection to the GROUND 2 plane.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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