CDC3205G-C Micronas, CDC3205G-C Datasheet - Page 17

• Manufacturer Part Number: CDC3205G-C
• Description: Automotive Controller Family The Device is a Microcontroller For Use in Automotive Applications.the On-chip Cpu is an Arm Processor ARM7TDMI with 32-bit Data And Address Bus, Which Supports Thumb format Instructions.
• Manufacturer: Micronas

PRELIMINARY DATA SHEET
2.3. Multiple Function Pins
2.3.1. U-Ports
Beside their basic function (digital I/O), Universal Ports (pre-
fix “U”) have overlaid alternative functions (see Table 2–1 on
page 12).
How to enable Basic Function, Special In and Special Out
mode is explained in the functional description of the U-
Ports. How to enable LCD mode is explained in the func-
tional descriptions of LCD module and U-Ports.
2.3.2. H-Ports
Beside their basic function (digital I/O), High Current Ports
(prefix “H”) have overlaid alternative functions (see Table 2–
1 on page 12).
How to enable Basic Function, Special In and Special Out
mode is explained in the functional description of the H-
Ports.
2.4. Pin Function Description
A0 to A7 (ARM) 1)
A8 to A23 (ARM) 4)
These 24 lines are the original CPU addresses. Some are
used for external memory access on the Emulator Bus. The
function is controlled by register CR.
ABE (ARM) 1) 2)
This pin outputs the “Address bus enable” signal of the ARM.
It indicates that the CPU does not access the data and
address bus when low. It is not possible to influence the CPU
via this pin.
ABORT (ARM) 3)
This is an input which allows the memory system to tell the
processor that a requested access is not allowed.
AICU2 to AICU7 4)
These pins correspond to the ARM address bus lines A2 to
A7 but can be modified by the ICU. In the latter case AICUx
and Ax are not equal.
ALARMQ
This is the second input comparator level on the RESETQ
pin.
AMCM21 to AMCM23 4)
These pins correspond to the ARM address bus lines A21 to
A23 but can be modified by the memory controller. In the lat-
ter case AMCMx and Ax are not equal.
AMCS1 4)
This pin corresponds to the ARM address bus line A1 but
can be modified by the memory controller. In the latter case
AMCS1 and A1 are not equal.
AM-OUT
This is the output signal of the Audio Module.
AM-PWM
This is the output signal of the 8-bit PWM of the Audio Mod-
ule. It is intended for testing only.
Micronas
June 12, 2003; 6251-579-1PD
2.3.3. Emulator Bus
In contrast to the PQFP128 standard package, the
CPGA257 package has additional pins (Emulator Bus) which
serve as memory interface, Emulation JTAG interface or
connection to an external emulation or trace hardware (Trace
Bus).
The functionality of the memory interface and the Trace Bus
is controlled by register CR. Refer to section “Control Word”
for more information.
Some of the following pins are marked as being ARM or
ETM signals. For details of the functionality please refer to
ARM7TDMI Data sheet (Document Number: ARM DDI 0029)
or Embedded Trace Macro Cell (Document Number: ARM
IHI 0014 and ARM DDI 0158).
AVDD
This is the positive power supply for ADC, P06COMP, WAIT-
COMP and BVDD regulator. AVDD should be kept at UVDD
ground
AVSS
This is the negative reference for the ADC and the negative
power supply for ADC, P06COMP, WAITCOMP and PLL.
Connect to analog ground.
BP0 to BP3
These pin functions serve as Backplane drivers for a 4:1
multiplexed LCD.
BREAKPT (ARM) 3)
This is the input pin for the ARM BREAKPT signal in Full
Trace mode. It allows external hardware to halt the execution
of the processor for debug purposes.
BVDD
This is the output of the internal 2.5V regulator for the PLL. It
must be buffered by an external capacitor to analog ground.
BWQ0 to BWQ3 4)
This is the byte write control signal to an external 32bit mem-
ory.
CAN0-RX, CAN1-RX, CAN2-RX, CAN3-RX
These signals provide the input lines for the CAN0, CAN1,
CAN2 and CAN3 modules.
CAN0-TX, CAN1-TX, CAN2-TX, CAN3-TX
These signals provide the output lines for the CAN0, CAN1,
CAN2 and CAN3 modules.
CC0-IN, CC1-IN, CC2-IN, CC3-IN, CC4-IN, CC5-IN
These signals are the capture inputs of the CAPCOM0 to
CAPCOM5 modules.
CC0-OUT, CC1-OUT, CC2-OUT, CC3-OUT, CC4-OUT, CC5-
OUT
0.5V. It must be buffered by an external capacitor to analog
CDC 32xxG-C
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