SAB80C537-N Infineon Technologies, SAB80C537-N Datasheet - Page 35

• Manufacturer Part Number: SAB80C537-N
• Description: IC MIRCROCONTROLLER 8BIT 84PLCC
• Manufacturer: Infineon Technologies

Specifications of SAB80C537-N

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 56
• Program Memory Type: ROMless
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 84-LCC (J-Lead)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q1612975

Multiplication/Division Unit
This on-chip arithmetic unit provides fast 32-bit division, 16-bit multiplication as well as shift and
normalize features. All operations are integer operations.
Operation
32-bit/16-bit
16-bit/16-bit
16-bit 16-bit
32-bit normalize
32-bit shift left/right
1)
2)
The MDU consists of six registers used for operands and results and one control register.
Operation of the MDU can be divided in three phases:
Figure 10
Operation of the MDU
To start an operation, register MD0 to MD5 (or ARCON) must be written to in a certain
sequence according to table 5 or 6. The order the registers are accessed determines the type
of the operation. A shift operation is started by a final write operation to register ARCON (see
also the register description).
Semiconductor Group
1
The maximal shift speed is 6 shifts/cycle.
t
cy = 1 s @ 12 MHz oscillator frequency.
Result
32-bit
16-bit
32-bit
–
–
34
Remainder
16-bit
16-bit
–
–
–
SAB 80C517/80C537
Execution Time
6 t
4
4 t
6 t
6 t
t cy
cy
cy
cy
cy
1
2
2
)
)
)