CME-12B32 AXIOM, CME-12B32 Datasheet - Page 12

• Manufacturer Part Number: CME-12B32
• Description: Microprocessor Development Tool
• Manufacturer: AXIOM

Specifications of CME-12B32

• Silicon Manufacturer: Freescale
• Kit Contents: Board
• Silicon Core Number: 68HC12B32
• Memory Organization - Flash: 32 KB
• Development Tool Type: Hardware - Eval/Demo Board
• Clock Frequency: 16MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

J2
RXD0
PS0 / RXD
TXD0
1
2
3
4
GND
PDLC6 25 26 PDLC7
PDLC4 27 28 PDLC5
PDLC2 29 30 PDLC3
PDLC0 31 32 PDLC1
PAD0
PAD2
PAD4
PAD6 11 12 PAD7
T2IN
R2OUT
R2IN
T2OUT
MCU_PORT2
VRH
PS2 17 18 PS3
PS4 19 20 PS5
PS6 21 22 PS7
COM1
+5V 13 14 GND
+5V 33 34 GND
+5v
+5v 23 24 GND
1
2
3
4
5
6
7
8
9
15 16 PS1 / TXD
1 2
3 4
5 6
7 8
9 10 PAD5
The J2 connector contains spare RS232 translator inputs and outputs. It can be used
for implementing hardware handshaking on COM1 if necessary.
VRL
GND
PAD1
PAD3
The COM-1 port has a Female DB9 connector that interfaces to the HC12
internal SCI0 serial port. It uses a simple 2 wire asynchronous serial
interface.
Pins 1, 4, and 6 are connected for default handshake standards.
Pins 7 and 8 are connected for default handshake standards.
Handshake pins can be easily isolated and connected to I/O ports if
necessary.
The MCU_PORT2 lines provide access to the peripheral features and I/O
lines of the HC12 as follows:
VRH / VRL
PAD0 – PAD7
PS0 – PS7
Port.
RXD / TXD
PDLC0 – PDLC7
HC12 Port S I/O or Serial Port lines. PS4-7 also used by the KEYPAD
HC12 A/D Converter Reference Pins. See A/D Reference Section.
Serial Port (SCI) receive and transmit pins.
HC12 Port AD is an input port or the A/D Converter inputs.
HC12 PDLC I/O or communication port lines.
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