Rainbow Electronics ATmega128RFA1 - Manual (Page 143)

143
8266A-MCU Wireless-12/09
ATmega128RFA1
10.11.22 SCOCR3HL – Symbol Counter Output Compare Register 3 HL-Byte
Bit 7 6 5 4 3 2 1 0
NA ($EF) SCOCR3HL7:0 SCOCR3HL
Read/Write RW RW RW RW RW RW RW RW
Initial Value 0 0 0 0 0 0 0 0
This register contains the second most significant byte of the 32 bit compare value for
the third compare unit
• Bit 7:0 – SCOCR3HL7:0 - Symbol Counter Output Compare Register 3 HL-Byte
10.11.23 SCOCR3LH – Symbol Counter Output Compare Register 3 LH-Byte
Bit 7 6 5 4 3 2 1 0
NA ($EE) SCOCR3LH7:0 SCOCR3LH
Read/Write RW RW RW RW RW RW RW RW
Initial Value 0 0 0 0 0 0 0 0
This register contains the second least significant byte of the 32 bit compare value for
the third compare unit
• Bit 7:0 – SCOCR3LH7:0 - Symbol Counter Output Compare Register 3 LH-Byte
10.11.24 SCOCR3LL – Symbol Counter Output Compare Register 3 LL-Byte
Bit 7 6 5 4 3 2 1 0
NA ($ED) SCOCR3LL7:0 SCOCR3LL
Read/Write RW RW RW RW RW RW RW RW
Initial Value 0 0 0 0 0 0 0 0
This register contains the least significant byte of the 32 bit compare value for the third
compare unit
• Bit 7:0 – SCOCR3LL7:0 - Symbol Counter Output Compare Register 3 LL-Byte
10.11.25 SCCR0 – Symbol Counter Control Register 0
Bit 7 6 5 4 3 2 1 0
NA ($DC) SCRES SCMBTS SCEN SCCKSEL SCTSE SCCMP3 SCCMP2 SCCMP1 SCCR0
Read/Write RW RW RW RW RW RW RW RW
Initial Value 0 0 0 0 0 0 0 0
The Control Register 0 is used to setup the operating mode of the symbol counter and
the compare units
• Bit 7 – SCRES - Symbol Counter Synchronization
If this bit is set to 1, the 16 MHz clock prescaler as well as the backoff slot counter is
cleared. This function can be used to align the symbol timing within one 16 µs symbol
period and to restart the backoff slot counter with a complete 320 µs period. This