SDA5252 SIEMENS [Siemens Semiconductor Group], SDA5252 Datasheet - Page 47

• Manufacturer Part Number: SDA5252
• Description: TVTEXT 8-Bit Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Figure 14
CPU-Timing
Note: For CDC see Chapter “Advanced Function Register” on page 115.
6.3.1.3
There are five general addressing modes operating on bytes. One of these five
addressing modes, however, operates on both bytes and bits:
– Register
– Direct (both bytes and bits)
– Register indirect
– Immediate
– Base-register plus index-register indirect
The following section summarizes, which memory spaces may be accessed by each of
the addressing modes:
Register Addressing
R0 – R7
ACC, B, CY (bit), DPTR
Direct Addressing
RAM (low part)
Special Function Registers
Register-Indirect Addressing
RAM (@R1, @R0, SP)
Immediate Addressing
Program Memory
Base-Register plus Index-Register Indirect Addressing
Program Memory (@DPTR + A, @PC + A)
Semiconductor Group
OSC
Addressing Modes
. .
2
CDC = 1
CDC = 0
Chip Clock
47
Internal
. . 6
Machine Cycles,
Instruction Cycles
SDA 525x
UES05470
1998-04-08