4. Register Summary
Address
(0xFF)
(0xFE)
(0xFD)
(0xFC)
(0xFB)
(0xFA)
(0xF9)
(0xF8)
(0xF7)
(0xF6)
(0xF5)
(0xF4)
(0xF3)
(0xF2)
(0xF1)
(0xF0)
(0xEF)
(0xEE)
(0xED)
(0xEC)
(0xEB)
(0xEA)
(0xE9)
(0xE8)
(0xE7)
(0xE6)
(0xE5)
(0xE4)
(0xE3)
(0xE2)
(0xE1)
(0xE0)
(0xDF)
(0xDE)
(0xDD)
(0xDC)
(0xDB)
(0xDA)
(0xD9)
(0xD8)
(0xD7)
(0xD6)
(0xD5)
(0xD4)
(0xD3)
(0xD2)
(0xD1)
(0xD0)
(0xCF)
(0xCE)
(0xCD)
(0xCC)
(0xCB)
(0xCA)
(0xC9)
(0xC8)
(0xC7)
(0xC6)
(0xC5)
(0xC4)
(0xC3)
(0xC2)
(0xC1)
(0xC0)
Name
Reserved
LCDDR18
LCDDR17
LCDDR16
LCDDR15
Reserved
LCDDR13
LCDDR12
LCDDR11
LCDDR10
Reserved
LCDDR8
LCDDR7
LCDDR6
LCDDR5
Reserved
LCDDR3
LCDDR2
LCDDR1
LCDDR0
Reserved
Reserved
Reserved
Reserved
LCDCCR
LCDFRR
LCDCRB
LCDCRA
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
UDR0
UBRR0H
UBRR0L
Reserved
UCSR0C
UCSR0B
UCSR0A
Bit 7
–
–
SEG323
SEG315
SEG307
–
–
SEG223
SEG215
SEG207
–
–
SEG123
SEG115
SEG107
–
–
SEG023
SEG015
SEG007
–
–
–
–
LCDCD2
–
LCDCS
LCDEN
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Bit 6
–
–
SEG322
SEG314
SEG306
–
–
SEG222
SEG214
SEG206
–
–
SEG122
SEG114
SEG106
–
–
SEG022
SEG014
SEG006
–
–
–
–
LCDCD1
LCDPS2
LCD2B
LCDAB
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Bit 5
–
–
SEG321
SEG313
SEG305
–
–
SEG221
SEG213
SEG205
–
–
SEG121
SEG113
SEG105
–
–
SEG021
SEG013
SEG005
–
–
–
–
LCDCC0
LCDPS1
LCDMUX1
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Bit 4
–
–
SEG320
SEG312
SEG304
–
–
SEG220
SEG212
SEG204
–
–
SEG120
SEG112
SEG104
–
–
SEG020
SEG012
SEG004
–
–
–
–
LCDMDT
LCDPS0
LCDMUX0
LCDIF
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Bit 3
–
–
SEG319
SEG311
SEG303
–
–
SEG219
SEG211
SEG203
–
–
SEG119
SEG111
SEG103
–
–
SEG019
SEG011
SEG003
–
–
–
–
LCDCC3
–
–
LCDIE
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Bit 2
–
–
SEG318
SEG310
SEG302
–
–
SEG218
SEG210
SEG202
–
–
SEG118
SEG110
SEG102
–
–
SEG018
SEG010
SEG002
–
–
–
–
LCDCC2
LCDCD2
LCDPM2
LCDBD
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Bit 1
–
–
SEG317
SEG309
SEG301
–
–
SEG217
SEG209
SEG201
–
–
SEG117
SEG109
SEG101
–
–
SEG017
SEG09
SEG001
–
–
–
–
LCDCC1
LCDCD1
LCDPM1
LCDCCD
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Bit 0
–
SEG324
SEG316
SEG308
SEG300
–
SEG224
SEG216
SEG208
SEG200
–
SEG124
SEG116
SEG108
SEG100
–
SEG024
SEG016
SEG008
SEG000
–
–
–
–
LCDCC0
LCDCD0
LCDPM0
LCDBL
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Page
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248
248
248
248
248
248
247
245
244
243
USART0 I/O Data Register
USART0 Baud Rate Register High
USART0 Baud Rate Register Low
–
–
RXCIE0
RXC0
–
UMSEL0
TXCIE0
TXC0
–
UPM10
UDRIE0
UDRE0
–
UPM00
RXEN0
FE0
–
USBS0
TXEN0
DOR0
–
UCSZ01
UCSZ02
UPE0
–
UCSZ00
RXB80
U2X0
–
UCPOL0
TXB80
MPCM0
189
193
193
189
189
189
8
ATmega169P
8018IS–AVR–11/06