Motorola CML12S-DP256 - Manual (Page 16)

C M L 1 2 S D P 2 5 6 0 7 / 1 7 / 0 2
16
The VDD supply is for reference or external 2.5V input only and should not be loaded by
external circuitry or damage to the HCS12 device may occur.
MCU_PORT
+5V 60 59 GND
PT7 58 57 PT6
PT5 56 55 PT4
PT3 54 53 PT2
PT1 52 51 PT0
** PK0 50 49 PK1 **
** PK2 48 47 PK3 **
** PK4 46 45 PK5 **
GND 44 43 +5V
PP1 42 41 PP0
PP3 40 39 PP2
PP5 38 37 PP4
PP7 36 35 PP6
** PM1 34 33 PM0 **
PM3 32 31 PM2
PM5 30 29 PM4
PM7 28 27 PM6
PJ1 26 25 PJ0
PJ7 24 23 PJ6
** PS7 22 21 PS6 **
** PS5 20 19 PS4 **
** PS3 18 17 PS2 **
** PS1 16 15 PS0 **
GND 14 13 +5V
GND 12 11 VREGEN
** PB7/D7 10 9 PB6/D6 **
** PB5/D5 8 7 PB4/D4 **
** PB3/D3 6 5 PB2/D2 **
** PB1/D1 4 3 PB0/D0 **
GND 2 1 +5V
The MCU_PORT provides access to the peripheral
features and I/O lines of the HCS12.
** Note signals with alternate connections on the
development board:
PB0 - 7 [D0 - 7] provide address / data on the
expanded HCS12.
PK0 - 5 [XA14 - XA19] provide high order paged
address lines on the expanded HCS12.
PM0 - 1 [CAN RXD0, TXD0] CAN channel 0 to CAN
Port transceiver.
PS0 - 1 [COM Port RXD0, TXD0]
PS2 - 3 [JP3 Port RXD1, TXD2]
PS4 - 7 [SPI Port] provides LCD_PORT serial
interface.
ANALOG PORT
PAD0/AN0 1 2 PAD8/AN8
PAD1/AN1 3 4 PAD9/AN9
PAD2/AN2 5 6 PAD10/AN10
PAD3/AN3 7 8 PAD11/AN11
PAD4/AN4 9 10 PAD12/AN12
PAD5/AN5 11 12 PAD13/AN13
PAD6/AN6 13 14 PAD14/AN14
PAD7/AN7 15 16 PAD15/AN15
VRH 17 18 VRL
VDDA 19 20 GND
The ANALOG port provides access to the Port AD0 and
Port AD1 Analog-to-Digital input lines.
PAD0 – PAD15 HC12 Port AD0-15 is an input port or
AN0 - AN15 A/D Converter inputs.
VRH / VRL HC12 A/D Converter Reference Pins. See
HCS12 A/D User guide. To provide an external
reference voltage, R3 and R4 need to be removed to
apply external VRH or VRL respectfully. See schematic.