UPSD3234A-40U6T STMicroelectronics, UPSD3234A-40U6T Datasheet - Page 21

• Manufacturer Part Number: UPSD3234A-40U6T
• Description: IC MCU 8032 64KB FLASH 80TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3234A-40U6T

• Core Processor: 8032
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, UART/USART, USB
• Peripherals: LVR, POR, PWM, WDT
• Number Of I /o: 46
• Program Memory Size: 288KB (288K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

UPSD3234A, UPSD3234BV, UPSD3233B, UPSD3233BV
2.9
2.9.1
Table 3.
Addressing modes
The addressing modes in UPSD323xx devices instruction set are as follows
1.
2.
3.
4.
5.
6.
Direct addressing
In a direct addressing the operand is specified by an 8-bit address field in the instruction.
Only internal Data RAM and SFRs (80~FFH RAM) can be directly addressed.
Example:
Figure 10. Direct addressing
Byte address
(in hexadecimal)
1Fh
0Fh
22h
21h
20h
18h
17h
10h
08h
07h
00h
¯
Direct addressing
Indirect addressing
Register addressing
Register-specific addressing
Immediate constants addressing
Indexed addressing
mov A, 3EH ; A <----- RAM[3E]
RAM address (continued)
17
0F
07
0E
16
06
0D
15
05
3Eh
Program Memory
Register bank 3
Register bank 2
Register bank 1
Register bank 0
0C
14
04
04
0B
13
03
A
AI06641
0A
12
02
Architecture overview
11
09
01
10
08
00
Byte address
(in decimal)
21/189
34
33
32
31
24
23
16
15
8
7
0
¯