DSPIC33FJ64MC202-I/SP Microchip Technology, DSPIC33FJ64MC202-I/SP Datasheet - Page 300
![IC DSPIC MCU/DSP 64K 28DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
DSPIC33FJ64MC202-I/SP
Manufacturer Part Number
DSPIC33FJ64MC202-I/SP
Description
IC DSPIC MCU/DSP 64K 28DIP
Manufacturer
Microchip Technology
Series
dsPIC™ 33Fr
Datasheets
1.DSPIC33FJ32MC202-IMM.pdf
(14 pages)
2.DSPIC33FJ32MC302-ISO.pdf
(436 pages)
3.DSPIC33FJ64MC202-ESO.pdf
(424 pages)
Specifications of DSPIC33FJ64MC202-I/SP
Program Memory Type
FLASH
Program Memory Size
64KB (64K x 8)
Package / Case
28-DIP (0.300", 7.62mm)
Core Processor
dsPIC
Core Size
16-Bit
Speed
40 MIPs
Connectivity
I²C, IrDA, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, Motor Control PWM, QEI, POR, PWM, WDT
Number Of I /o
21
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 6x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Product
DSCs
Data Bus Width
16 bit
Processor Series
DSPIC33F
Core
dsPIC
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
21
Data Ram Size
8 KB
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52713-733, 52714-737, 53276-922, EWDSPIC
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DV164033
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DV164033 - KIT START EXPLORER 16 MPLAB ICD2DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
- DSPIC33FJ32MC202-IMM PDF datasheet
- DSPIC33FJ32MC302-ISO PDF datasheet #2
- DSPIC33FJ64MC202-ESO PDF datasheet #3
- Current page: 300 of 424
- Download datasheet (6Mb)
25.1
The RTCC module registers are organized into three
categories:
• RTCC Control Registers
• RTCC Value Registers
• Alarm Value Registers
25.1.1
To limit the register interface, the RTCC Timer and
Alarm Time registers are accessed through corre-
sponding register pointers. The RTCC Value register
window (RTCVALH and RTCVALL) uses the RTCPTR
bits (RCFGCAL<9:8>) to select the desired timer
register pair (see Table 25-1).
By writing the RTCVALH byte, the RTCC Pointer value,
RTCPTR<1:0> bits, decrement by one until they reach
‘00’. Once they reach ‘00’, the MINUTES and
SECONDS value will be accessible through RTCVALH
and RTCVALL until the pointer value is manually
changed.
TABLE 25-1:
The Alarm Value register window (ALRMVALH and
ALRMVALL)
(ALCFGRPT<9:8>) to select the desired Alarm register
pair (see Table 25-2).
EXAMPLE 25-1:
DS70291D-page 300
RTCPTR
<1:0>
MOV
MOV
MOV
MOV
MOV
BSET
00
01
10
11
RTCC Module Registers
REGISTER MAPPING
#NVMKEY, W1
#0x55, W2
#0xAA, W3
W2, [W1]
W3, [W1]
RCFGCAL, #13
uses
RTCVAL<15:8>
RTCVAL REGISTER MAPPING
RTCC Value Register Window
WEEKDAY
MINUTES
MONTH
SETTING THE RTCWREN BIT
—
the
ALRMPTR
RTCVAL<7:0>
;move the address of NVMKEY into W1
;start 55/AA sequence
;set the RTCWREN bit
SECONDS
HOURS
YEAR
DAY
Preliminary
bits
By writing the ALRMVALH byte, the Alarm Pointer
value, ALRMPTR<1:0> bits, decrement by one until
they reach ‘00’. Once they reach ‘00’, the ALRMMIN
and ALRMSEC value will be accessible through
ALRMVALH and ALRMVALL until the pointer value is
manually changed.
TABLE 25-2:
Considering that the 16-bit core does not distinguish
between 8-bit and 16-bit read operations, the user must
be aware that when reading either the ALRMVALH or
ALRMVALL bytes will decrement the ALRMPTR<1:0>
value. The same applies to the RTCVALH or RTCVALL
bytes with the RTCPTR<1:0> being decremented.
25.1.2
In order to perform a write to any of the RTCC Timer
registers, the RTCWREN bit (RCFGCAL<13>) must be
set (refer to Example 25-1).
ALRMPTR
Note:
Note:
<1:0>
00
01
10
11
This only applies to read operations and
not write operations.
WRITE LOCK
To avoid accidental writes to the timer, it is
recommended that the RTCWREN bit
(RCFGCAL<13>) is kept clear at any
other time. For the RTCWREN bit to be
set, there is only 1 instruction cycle time
window allowed between the 55h/AA
sequence and the setting of RTCWREN;
therefore, it is recommended that code
follow the procedure in Example 25-1.
ALRMVAL<15:8> ALRMVAL<7:0>
ALRMVAL REGISTER
MAPPING
Alarm Value Register Window
ALRMMNTH
ALRMMIN
ALRMWD
© 2009 Microchip Technology Inc.
—
ALRMSEC
ALRMDAY
ALRMHR
—
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