PIC17C756A-16I/L Microchip Technology Inc., PIC17C756A-16I/L Datasheet - Page 52
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PIC17C756A-16I/L
Manufacturer Part Number
PIC17C756A-16I/L
Description
68 PIN, 32 KB OTP, 902 RAM, 50 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC17C756A-16IL.pdf
(304 pages)
Specifications of PIC17C756A-16I/L
A/d Inputs
12-Channel, 10-Bit
Cpu Speed
8.25 MIPS
Eeprom Memory
0 Bytes
Input Output
52
Interface
I2C/SPI/USART
Memory Type
OTP
Number Of Bits
8
Package Type
68-pin PLCC
Programmable Memory
32K Bytes
Ram Size
902 Bytes
Speed
16 MHz
Timers
2-8-bit, 2-16-bit
Voltage, Range
3-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Available stocks
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Quantity
Price
Company:
Part Number:
PIC17C756A-16I/L
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC17C756A-16I/L
Manufacturer:
MICROCH
Quantity:
20 000
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PIC17C7XX
7.2.2.2
The CPUSTA register contains the status and control
bits for the CPU. This register has a bit that is used to
globally enable/disable interrupts. If only a specific
interrupt is desired to be enabled/disabled, please refer
to the Interrupt Status (INTSTA) register and the
Peripheral Interrupt Enable (PIE) registers. The
CPUSTA register also indicates if the stack is available
and contains the Power-down (PD) and Time-out (TO)
bits. The TO, PD, and STKAV bits are not writable.
These bits are set and cleared according to device
REGISTER 7-2: CPUSTA REGISTER (ADDRESS: 06h, UNBANKED)
DS30289B-page 52
bit 7-6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
CPU Status Register (CPUSTA)
Legend:
R = Readable bit
- n = Value at POR Reset
bit 7
Unimplemented: Read as '0'
STKAV: Stack Available bit
This bit indicates that the 4-bit stack pointer value is Fh, or has rolled over from Fh
(stack overflow).
1 = Stack is available
0 = Stack is full, or a stack overflow may have occurred (once this bit has been cleared by a
GLINTD: Global Interrupt Disable bit
This bit disables all interrupts. When enabling interrupts, only the sources with their enable bits
set can cause an interrupt.
1 = Disable all interrupts
0 = Enables all unmasked interrupts
TO: WDT Time-out Status bit
1 = After power-up, by a CLRWDT instruction, or by a SLEEP instruction
0 = A Watchdog Timer time-out occurred
PD: Power-down Status bit
1 = After power-up or by the CLRWDT instruction
0 = By execution of the SLEEP instruction
POR: Power-on Reset Status bit
1 = No Power-on Reset occurred
0 = A Power-on Reset occurred (must be set by software)
BOR: Brown-out Reset Status bit
When BODEN Configuration bit is set (enabled):
1 = No Brown-out Reset occurred
0 = A Brown-out Reset occurred (must be set by software)
When BODEN Configuration bit is clear (disabled):
Don’t care
U-0
—
stack overflow, only a device RESET will set this bit)
U-0
—
STKAV
R-1
W = Writable bit
’1’ = Bit is set
GLINTD
R/W-1
logic. Therefore, the result of an instruction with the
CPUSTA register as destination may be different than
intended.
The POR bit allows the differentiation between a
Power-on Reset, external MCLR Reset, or a WDT
Reset. The BOR bit indicates if a Brown-out Reset
occurred.
Note 1: The BOR status bit is a don’t care and is
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
R-1
TO
not necessarily predictable if the Brown-out
circuit is disabled (when the BODEN bit in
the Configuration word is programmed).
R-1
PD
2000 Microchip Technology Inc.
x = Bit is unknown
R/W-0
POR
0h
R/W-1
BOR
bit 0
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