PRODUCT INFORMATION
CDC 3257G
May/2005
CDC 3257G
ARM7-Based Car Dashboard Controller
The CDC 3257G-Cx is a pin-compatible
Flash ROM derivate of Micronas’ 32-bit Car
Dashboard Controller family based on an
ARM7TDMI CPU core (CDC32xxG).
This device comes along with additional
features of the Cx platform like a superior
power saving module (PSM), two high-
speed CAN modules (Bosch V2.0B) and a
device lock module to inhibit Flash access.
Main characteristics of the PSM are three
additional low-power modes (IDLE, WAKE,
and STANDBY), an internal RC oscillator, a
polling/Flash timer output, as well as an
RTC (Real Time Clock).
The CDC 3257G also contains the patented
built-in ERM (EMI Reduction Module).
◆
RTC delivering hours, minutes, seconds
◆
Polling/Flash timer output
◆
PLL circuitry delivering up to 50 MHz
◆
4- to 5-MHz oscillator
◆
EMI reduction module (ERM)
◆
Digital watchdog
◆
Central clock divider
◆
Interrupt controller with 40 inputs and
16 priority levels
◆
Six port interrupts
◆
Regulator input supervision for reset/
alarm (alarm comparator)
◆
Clock and supply supervision
◆
16-channel 10-bit ADC
◆
Two I
2
C master modules
◆
Seven stepper motor drivers
◆
Six PWM modules
(configurable as 2×8 bit or 1×16 bit)
◆
Pulse frequency modulator
◆
Sound generator with auto decay
◆
Two SW-selectable clock outputs
◆
16-bit free-running counter with six cap-
ture/compare modules
◆
Patch module (up to 10 cells)
◆
Device lock module (DLM) inhibiting
Flash access
◆
1
×16-bit
timer and 4×8-bit timer
◆
JTAG interface
◆
−40
to +105 °C case temperature range
◆
Single 3.5 V to 5.5 V supply voltage
(limited I/O performance below 4.5 V)
◆
Up to 102 GPIOs
◆
128-pin PQFP package, 0.5 mm pin pitch
Features
◆
256 KB Flash
◆
12 KB SRAM
◆
8 KB boot ROM
◆
Four CPU operation modes
(Deep Slow, Slow, Fast, PLL)
◆
Three low-power modes
(Idle, Wake, Standby)
◆
Two comparators
◆
ADC reference (1 internal, 3 external)
◆
48
×4
LCD module
◆
Three DMA channels
◆
Two UARTs, two SPIs
◆
DigitBus master module
◆
Two CAN modules with 512 Bytes each
of object RAM according to Bosch speci-
fication V2.0B (32 message objects)
MICRONAS [ MICRONAS ]
