ATxmega128B3 Atmel Corporation, ATxmega128B3 Datasheet - Page 317

• Manufacturer Part Number: ATxmega128B3
• Manufacturer: Atmel Corporation

Specifications of ATxmega128B3

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 36
• Ext Interrupts: 36
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 100
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.6 to 3.6
• Operating Voltage (vcc): 1.6 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

24.5.10
8291A–AVR–10/11
CTRLH – Control Register H
Figure 24-11. Segment and Common Terminal Connections for Digit
• Bit 7 – DEC: Decrement of Start Segment
Writing this bit to one automatically decrements the STSEG bit-field of CTRLG register by the
number of segment terminals used by the digit. If this bit is written to zero, the STSEG bit-field is
incremented by the number of segment terminals used by the digit. This action takes place once
the digit decoding is finished and prepares the next call to the Digit Decoder.
• Bits 6:0 – DCODE[6:0]: Display Code
DCODE bit-field will be computed by the Digit Decoder, and converted to display codes, and
then automatically written into the Display Memory according to the STSEG value. This Digit
Decoder can be used when the LCD panel is defined with one or more of the configurations
above in
The
DCODE[6:0] and display pattern.
The table entry code, DCODE [6:0], is the 7-bit ASCII code of the digit.
Bit
+0x09
Read/Write
Initial Value
Table 24-12 on page
e
e
f
f
Figure 24-11 on page
g
l
j
DEC
R/W
m
a
g
d
a
d
7
0
h
k
n
i
c
b
c
b
R/W
6
0
7-segment with 3 COM
SEGn :
SEGn+1 : a, d, g
SEGn+2 : e, f
COM0 :
COM1 :
COM2 :
14-segment with 4 COM
SEGn :
SEGn+1 : d, e, f
SEGn+2 : a, b, c
SEGn+3 : g, j, l, m
COM0 :
COM1 :
COM2 :
COM3 :
318,
Table 24-13 on page 319
b, c
a, b, f
c, e, g
d
h, i, k, n
a, g, h
b, i, j, f
c, e, k, l
d, m, n
317.
R/W
5
0
R/W
4
0
DCODE[6:0]
R/W
e
h
g
f
3
0
Atmel AVR XMEGA B
n
i
a
f
and
l
a
g
d
o
j
Table 24-14 on page 320
m
e
R/W
b
k
p
2
0
d
b
c
c
7-segment with 4 COM
SEGn :
SEGn+1 : d, e, f, g
COM0 :
COM1 :
COM2 :
COM3 :
16-segment with 3 COM
SEGn :
SEGn+1 : a, i, l
SEGn+2 : b, k, m
SEGn+3 : c, d, e
SEGn+4 : j, o, p
SEGn+5 : f
COM0 :
COM1 :
COM2 :
R/W
1
0
a, f
b, g
c, e
d
h, a, b, c, j
g, i, k, d, o
n, l, m, p, e, f
a, b, c
h, g, n
R/W
0
0
show the
CTRLH
317