Datasheet

Analog Integrated Circuit Device Data
Freescale Semiconductor 126
MC34708
Functional Block Description
CLK32KDRV[1:0] 18-17 R/W RTCPORB 0x01
CLK32K and CLK32KMCU drive strength (master control
bits)
Unused 20-19 R 0x00
Not available
ON_STBY_LP 21 R/W RESETB 0x0
On Standby Low Power Mode
0 = Low power mode disabled
1 =Low power mode enabled
STBYDLY[1:0] 23-22 R/W RESETB 0x01
Standby delay control
Table 121. Register 16, Memory A
Name Bit # R/W Reset Default Description
MEMA[23:0] 23-0 R/W RTCPORB 0x000000
Backup memory A
Table 122. Register 17, Memory B
Name Bit # R/W Reset Default Description
MEMB[23:0] 23:0 R/W RTCPORB 0x000000
Backup memory B
Table 123. Register 18, Memory C
Name Bit # R/W Reset Default Description
MEMC[23:0] 23-0 R/W RTCPORB 0x000000
Backup memory C
Table 124. Register 19, Memory D
Name Bit # R/W Reset Default Description
MEMD[23:0] 23-0 R/W RTCPORB 0x000000
Backup memory D
Table 125. Register 20, RTC Time
Name Bit # R/W Reset Default Description
TOD[16:0] 16-0 R/W RTCPORB
(77)
0x00000
Time of day counter
RTCCAL[4:0] 21-17 R/W RTCPORB
(77)
0x00
RTC calibration count
RTCCALMODE[1:0] 23-22 R/W RTCPORB
(77)
0x0
RTC calibration mode
Notes
77. Reset by RTCPORB but not during a GLBRST (global reset)
Table 126. Register 21, RTC Alarm
Name Bit # R/W Reset Default Description
TODA[16:0] 16-0 R/W RTCPORB
(78)
0x1FFFF
Time of day alarm
Unused 22-17 R 0x00
Not available
RTCDIS 23 R/W RTCPORB
(78)
0x0
Disable RTC
Notes
78. Reset by RTCPORB but not during a GLBRST (global reset)
Table 120. Register 15, Power Control 2
Name Bit # R/W Reset Default Description