Flash control register 0 low Bit Function BSY0 Bank 0 Busy (IFlash) This bit indicates that a write operation is running on Bank 0 (IFlash). It is automatically set when bit WMS is set. Setting Protection operation sets bit BSY0 (since protection registers are in this Block). When this...
Figure 10. 8032 MCU registers PCH DPTR(DPH) A B SP PCL PSW R0-R7 DPTR(DPL) Accumulator B Register Stack Pointer Program Counter Program Status Word General Purpose Register (Bank0-3) Data Pointer Register AI06636 )7.1 Stack Pointer (SP) t(sThe SP is an 8-bit register which holds the...
Figure 11. 8032 MCU registers PCH DPTR(DPH) A B SP PCL PSW R0-R7 DPTR(DPL) Accumulator B Register Stack Pointer Program Counter Program Status Word General Purpose Register (Bank0-3) Data Pointer Register AI06636 7.1 Stack pointer (SP) The SP is an 8-bit register which holds the ...
Therefore, the first value pushed on the stack is placed at location 0x08, which is also the first register (R0) of register bank 1. Thus, if more than one register bank is to be used, the SP should be initialized to a location in the data memory not being used for data storage. ...
Two bits in the Program Status Word select which register bank is in use. This allows more efficient use of code space, since register instructions are shorter than instructions that use direct addressing. The next 16bytes above the register banks form a block of bit-addressable memory space. ...
Thus, if more than one register bank is to be used, the SP should be initialized to a location in the data memory not being used for data storage. The stack depth can extend up to 256 bytes. STC MCU Limited. 3.2.2 Auxiliary RAM There are 1024 bytes of additional data RAM ...
Two bits in the Program Status Word select which register bank is in use. This allows more efficient use of code space, since register instructions are shorter than instructions that use direct addressing. The next 16bytes above the register banks form a block of bit-addressable memory space. ...
Therefore, loading the stack starts from locations 08H, which is also the first register (R0) of register bank 1. Thus, if one is going to use more than one register bank, the stack pointer should be initialized to an area of RAM not used for data storage. BANKS SELECTED VIA BITS IN...
Reset initializes the stack pointer to location 07H and incre- ments it once before loading the stack to start from location 08H, which is also the first register (R0) of register bank 1. Thus, if the user needs to use more than one register bank, the stack pointer should be ...
There are two sets of register bank. b31 R2 R3 b15 b8b7 b0 R0H (high-order of R0) R0L (low-order of R0) R1H (high-order of R1) R1L (low-order of R1) R2 R3 A0 A1 FB Data registers (1) Address registers (1) Frame base register (1) b19 b15 INTBH INTBL The 4 high ...