MRF24J40_08 Datasheet, PDF (69/152 Pages) Microchip Technology – IEEE 802.15.4™ 2.4 GHz RF Transceiver

MRF24J40
REGISTER 2-74: WAKETIMEL: WAKE-UP TIME MATCH VALUE LOW REGISTER
(ADDRESS: 0x222)
R/W-0
R/W-0
R/W-0
R/W-0
R/W-1
R/W-0
R/W-1
R/W-0
WAKETIME7⁽¹⁾ WAKETIME6⁽¹⁾ WAKETIME5⁽¹⁾ WAKETIME4⁽¹⁾ WAKETIME3⁽¹⁾ WAKETIME2⁽¹⁾ WAKETIME1⁽¹⁾ WAKETIME0⁽¹⁾
bit 7
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 7-0
WAKETIME<7:0>: Wake Time Match Value bits⁽¹⁾
WAKETIME is an 11-bit value that is compared with the Main Counter (MAINCNT) to signal the time to enable
(wake-up) the 20 MHz main oscillator when the MRF24J40 is using the Sleep mode timers. Default value:
0x00A. Minimum value: 0x001.
Note 1: Rule: WAKETIME > WAKECNT.
REGISTER 2-75: WAKETIMEH: WAKE-UP TIME MATCH VALUE HIGH REGISTER
(ADDRESS: 0x223)
R/W-0
r
bit 7
R/W-0
r
R/W-0
r
R/W-0
r
R/W-0
r
R/W-0
R/W-0
R/W-0
WAKETIME10⁽¹⁾ WAKETIME9⁽¹⁾ WAKETIME8⁽¹⁾
bit 0
Legend:
R = Readable bit
-n = Value at POR
r = reserved
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-3
bit 2-0
Reserved: Maintain as ‘0’
WAKETIME<10:8>: Wake-up Time Counted by SLPCLK bits⁽¹⁾
WAKETIME is an 11-bit value that is compared with the Main Counter (MAINCNT) to signal the time to
enable (wake-up) the 20 MHz main oscillator when the MRF24J40 is using the Sleep mode timers.
Default value: 0x00A. Minimum value: 0x001.
Note 1: Rule: WAKETIME > WAKECNT.
© 2008 Microchip Technology Inc.
Preliminary
DS39776B-page 67