MA180025 Microchip Technology, MA180025 Datasheet - Page 157
![MODULE PLUG-IN PIC18F87J90 PIM](/photos/8/98/89853/ma180025_sml.jpg)
MA180025
Manufacturer Part Number
MA180025
Description
MODULE PLUG-IN PIC18F87J90 PIM
Manufacturer
Microchip Technology
Series
PIC®r
Specifications of MA180025
Accessory Type
Plug-In Module (PIM) - PIC18F87J90
Product
Microcontroller Modules
Silicon Manufacturer
Microchip
Core Architecture
PIC
Core Sub-architecture
PIC18
Silicon Core Number
PIC18F
Silicon Family Name
PIC18FxxJxx
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
PICDEM LCD 2 Demonstration Board (DM163030)
For Use With
DM163030 - KIT DEV PICDEM LCD2
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MA180025
Manufacturer:
Microchip Technology
Quantity:
135
Company:
Part Number:
MA180025
Manufacturer:
MICROCHIP
Quantity:
12 000
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15.1.1
REGISTER 15-1:
2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1-0
Note 1:
RTCEN
R/W-0
2:
3:
(2)
The RTCCFG register is only affected by a POR. For resets other than POR, RTCC will continue to run
even if the device is in Reset.
A write to the RTCEN bit is only allowed when RTCWREN = 1.
This bit is read-only; it is cleared to ‘0’ on a write to the lower half of the MINSEC register.
RTCC CONTROL REGISTERS
RTCEN: RTCC Enable bit
1 = RTCC module is enabled
0 = RTCC module is disabled
Unimplemented: Read as ‘0’
RTCWREN: RTCC Value Registers Write Enable bit
1 = RTCVALH and RTCVALL registers can be written to by the user
0 = RTCVALH and RTCVALL registers are locked out from being written to by the user
RTCSYNC: RTCC Value Registers Read Synchronization bit
1 = RTCVALH, RTCVALL and ALRMRPT registers can change while reading due to a rollover ripple
0 = RTCVALH, RTCVALL and ALCFGRPT registers can be read without concern over a rollover
HALFSEC: Half-Second Status bit
1 = Second half period of a second
0 = First half period of a second
RTCOE: RTCC Output Enable bit
1 = RTCC clock output enabled
0 = RTCC clock output disabled
RTCPTR<1:0>: RTCC Value Register Window Pointer bits
Points to the corresponding RTCC Value registers when reading the RTCVALH and RTCVALL registers.
The RTCPTR<1:0> value decrements on every read or write of RTCVALH<7:0> until it reaches ‘00’.
RTCVALH:
00 = Minutes
01 = Weekday
10 = Month
11 = Reserved
RTCVALL:
00 = Seconds
01 = Hours
10 = Day
11 = Year
resulting in an invalid data read. If the register is read twice and results in the same data, the data
can be assumed to be valid.
ripple
U-0
—
RTCCFG: RTCC CONFIGURATION REGISTER
W = Writable bit
‘1’ = Bit is set
RTCWREN
R/W-0
(2)
RTCSYNC HALFSEC
R-0
(3)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PIC18F87J90 FAMILY
R-0
(3)
(1)
RTCOE
R/W-0
x = Bit is unknown
RTCPTR1
R/W-0
DS39933D-page 157
RTCPTR0
R/W-0
bit 0
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