UPD78F0411GA-GAM-AX Datasheet, PDF (436/564 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 16 MANCHESTER CODE GENERATOR
MC0PWR
Figure 16-9. Timing of Bit Sequential Buffer Mode (LSB First) (4/4)
(4) Transmit timing (MC0OLV = 0, total transmit bit length = 13 bits)
MC0OLV _"L"
MC0OSL
MC0BIT
3-bit counter
MC0TX
8-bit shift register
Baud rate clock
Write
"111"
Write
"100"
"111" "110" "101" "100" "011" "010" "001" "000" "100" "011" "010" "001"
Write
Write
"10100101"
(8-bit data)
"xxx10100" (5-bit data)
"000"
"1010 "x101 "xx10 "xxx1 "xxxx "xxxx "xxxx "xxxx "xxx1 "xxxx "xxxx "xxxx "xxxx
0101" 0010" 1001" 0100" 1010" x101" xx10" xxx1" 0100" 1010" x101" xx10" xxx1"
MCGO pin
MC0TSF
INTMCG
(a)
(b)
(a): “8-bit transfer period” – (b)
(b): “1/2 cycle of baud rate” + 1 clock (fXCLK) before the last bit of transmit data
fXCLK: Frequency of operation base clock selected by using the MC0CKS2 to MC0CKS0 bits of the
MC0CTL1 register
Last bit: Transfer bit when 3-bit counter = 000
Caution Writing the next transmit data to MC0TX must be complete within the period (a) during
continuous transmission. If writing the next transmit data to MC0TX is executed in the period
(b), the next data transmission starts 2 clocks (fXCLK) after the last bit has been transmitted.
Rewrite the MC0BIT before writing to MC0TX during continuous transmission.
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User’s Manual U18698EJ1V0UD