PIC18F87K90-E/PT Microchip Technology, PIC18F87K90-E/PT Datasheet - Page 222

• Manufacturer Part Number: PIC18F87K90-E/PT
• Description: 128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm TR
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F87K90-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 64MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 80-TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F87K90 FAMILY
REGISTER 17-5:
17.1.2
REGISTER 17-6:
DS39957D-page 222
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
ARPT7
R/W-0
U-0
—
RTCVALH AND RTCVALL
REGISTER MAPPINGS
ARPT<7:0>: Alarm Repeat Counter Value bits
11111111 = Alarm will repeat 255 more times
.
.
.
00000000 = Alarm will not repeat
The counter decrements on any alarm event. The counter is prevented from rolling over from 00h to
FFh unless CHIME = 1.
Unimplemented: Read as ‘0’
ARPT6
R/W-0
U-0
—
ALRMRPT: ALARM REPEAT REGISTER
RESERVED REGISTER
W = Writable bit
W = Writable bit
‘1’ = Bit is set
‘1’ = Bit is set
ARPT5
R/W-0
U-0
—
ARPT4
R/W-0
U-0
—
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
ARPT3
R/W-0
U-0
—
ARPT2
R/W-0
U-0
—
 2009-2011 Microchip Technology Inc.
x = Bit is unknown
x = Bit is unknown
ARPT1
R/W-0
U-0
—
ARPT0
R/W-0
U-0
—
bit 0
bit 0