MCP19110_16 Datasheet, PDF (71/226 Pages) Microchip Technology – Digitally-Enhanced Power Analog Controller

MCP19110/11
REGISTER 11-1: STATUS: STATUS REGISTER
R/W-0
R/W-0
R/W-0
R-1
R-1
IRP
bit 7
RP1
RP0
TO
PD
R/W-x
Z
R/W-x
DC⁽¹⁾
R/W-x
C⁽¹⁾
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6-5
bit 4
bit 3
bit 2
bit 1
bit 0
IRP: Register Bank Select bit (used for Indirect addressing)
1 = Bank 2 & 3 (100h – 1FFh)
0 = Bank 0 & 1 (00h – FFh)
RP<1:0>: Register Bank Select bits (used for Direct addressing)
00 = Bank 0 (00h - 7Fh)
01 = Bank 1 (80h - FFh)
10 = Bank 2 (100h - 17Fh)
11 = Bank 3 (180h - 1FFh)
TO: Time-out bit
1 = After power-up, CLRWDT instruction or SLEEP instruction
0 = A WDT time-out occurred
PD: Power-down bit
1 = After power-up or by the CLRWDT instruction
0 = By execution of the SLEEP instruction
Z: Zero bit
1 = The result of an arithmetic or logic operation is zero
0 = The result of an arithmetic or logic operation is not zero
DC: Digit Carry/Digit Borrow bit⁽¹⁾ (ADDWF, ADDLW, SUBLW, SUBWF instructions)
1 = A carry-out from the 4^th low-order bit of the result occurred
0 = No carry-out from the 4^th low-order bit of the result
C: Carry/Borrow bit⁽¹⁾ (ADDWF, ADDLW, SUBLW, SUBWF instructions)⁽¹⁾
1 = A carry-out from the Most Significant bit of the result occurred
0 = No carry-out from the Most Significant bit of the result occurred
Note 1: For Borrow, the polarity is reversed. A subtraction is executed by adding the two’s complement of the
second operand. For rotate (RRF, RLF) instructions, this bit is loaded with either the high-order or low-order
bit of the source register.
11.2.1 SPECIAL FUNCTION REGISTERS
The Special Function Registers are registers used by
the CPU and peripheral functions for controlling the
desired operation of the device (see Table 11-1). These
registers are static RAM.
The special registers can be classified into two sets:
core and peripheral. The Special Function Registers
associated with the microcontroller core are described
in this section. Those related to the operation of the
peripheral features are described in the associated
section for that peripheral feature.
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DS20002331D-page 71