CME-12B32 AXIOM, CME-12B32 Datasheet - Page 11

• 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

PORTS and CONNECTORS
/XIRQ 11 12 /DBE
GND
GND 39 40 / RESET
/ WE 25 26 CS0
/ OE 15 16 A4
CS1 27 28 CS2
CS3 29 30 CS4
CS5 31 32 IRQ
/RW 35 36 CS6
VFP 13 14 /LSTRB
PP6 17 18 PP7
PP4 19 20 PP5
PP2 21 22 PP3
PP0 23 24 PP1
MCU_PORT1
D10
A10 13 14 A3
A11 17 18 A5
A12 23 24 A13
+5V 33 34 /P-SEL
A14
+5V 15 16 GND
+5V 25 26 GND
PT0 27 28 PT1
PT2 29 30 PT3
PT4 31 32 PT5
PT6 33 34 PT7
BUS_PORT
D9
D8
A0
A1 11 12 A2
A9 19 20 A6
A8 21 22 A7
D0
D2
D4
D6
E 37 38 CS7
1 2
3 4
5 6
7 8
9 10 D15
1 2
3 4
5 6
7 8
9 10 D7
D11
D12
D13
D14
A15
D1
D3
D5
The BUS_PORT supports off-board memory devices as follows:
D8 - D15
Port A in Single Chip Mode.
A0 – A15
/OE
CS0 – CS7
access (narrow bus).
/WE
IRQ
/RW
E
/P-SEL
/RESET
The MCU_PORT1 lines provide access to the peripheral features and I/O lines
of the HC12 as follows:
D0 – D7
Mode.
/XIRQ
VFP
/LSTRB
software for bus use.
PP0 – PP7
PT0 – PT7
HC12 ECLK (PE4) bus clock signal. Stretch should be enabled in software.
Memory Output Enable signal, Active Low. Valid with ECLK and R/W high.
HC12 IRQ (PE1) Interrupt Input.
Memory Write Enable signal, Active Low. Valid with ECLK high and R/W low.
HC12 Read/Write (PE2) control signal.
Programming voltage, 12v, when VPP_EN jumper is on.
HC12 XIRQ interrupt input .
Selects Peripheral area, register following space, 8 bits wide.
HC12 active low RESET signal.
Low Byte of the Data Bus in Wide Expanded Mode. Port B in Single Chip
HC12 LSTRB (PE3) output indicates 8 bit bus access. Should be enabled in
High Byte Data Bus in Wide Expanded Mode and Peripheral 8 bit data bus.
Memory Addresses 0 to 15.
HC12 Port T I/O or Timer port.
HC12 Port P I/O or PWM port. PP3-7 also used by the KEYPAD Port.
Peripheral chip selects, 16 bytes each located at $200 - $27F hex, 8 bit
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