PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 63

• Manufacturer Part Number: PSB21473FV13XT
• Manufacturer: Infineon Technologies

Specifications of PSB21473FV13XT

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Lead Free Status / RoHS Status: Compliant

INCA-D
PSB 21473
Central Processor Unit
•
Figure 6-5
Register Bank Selection via Register CP
Several addressing modes use register CP implicitly for address calculations. The
addressing modes mentioned below are described in chapter “Instruction Set
Summary”.
Short 4-Bit GPR Addresses (mnemonic: Rw or Rb) specify an address relative to the
memory location specified by the contents of the CP register, ie. the base of the current
register bank.
Depending on whether a relative word (Rw) or byte (Rb) GPR address is specified, the
short 4-bit GPR address is either multiplied by two or not before it is added to the content
of register CP (see figure below). Thus, both byte and word GPR accesses are possible
in this way.
GPRs used as indirect address pointers are always accessed wordwise. For some
instructions only the first four GPRs can be used as indirect address pointers. These
GPRs are specified via short 2-bit GPR addresses. The respective physical address
calculation is identical to that for the short 4-bit GPR addresses.
Short 8-Bit Register Addresses (mnemonic: reg or bitoff) within a range from F0
to
H
FF
interpret the four least significant bits as short 4-bit GPR address, while the four
H
most significant bits are ignored. The respective physical GPR address calculation is
identical to that for the short 4-bit GPR addresses.
Data Sheet
63
2003-03-31