TMP92xy22FG Toshiba, TMP92xy22FG Datasheet - Page 208

• Manufacturer Part Number: TMP92xy22FG
• Manufacturer: Toshiba

Specifications of TMP92xy22FG

• Package: LQFP100
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): Romless
• Rom Combinations: Romless
• Ram Combinations: 32
• Architecture: 32-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: 1
• (s)dram Controller: -
• Adc 10-bit Channel: 8
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: 2
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: 4
• Dual Clock: -
• Number Of I/o Ports: 50
• Power Supply Voltage(v): 3.0 to 3.6

3.11.2
Description of Operation
(1) Analog reference voltage
(2) Analog input channel selection
reference voltage is applied to the VREFL pin. To perform AD conversion, the reference
voltage, the difference between VREFH and VREFL, is divided by 1024 using string
resistance. The result of the division is then compared with the analog input voltage.
ADMOD1<VREFON> in AD mode control register 1. To start AD conversion in the
OFF state, first write a 1 to ADMOD1<VREFON>, wait 3 μs until the internal
reference voltage stabilizes (This is not related to f
converter.
“000”. Thus pin AN0 is selected as the fixed input channel. Pins not used as analog
input channels can be used as standard input port pins.
• In analog input channel fixed mode (ADMOD0<SCAN> = 0)
• In analog input channel scan mode (ADMOD0<SCAN> = 1)
A high-level analog reference voltage is applied to the VREFH pin; a low-level analog
To turn off the switch between VREFH and VREFL, program a 0 to
The analog input channel selection varies depends on the operation mode of the AD
Table 3.11.1 illustrates analog input channel selection in each operation mode.
On a reset, ADMOD0<SCAN> is set to “0” and ADMOD1<ADCH2:0> is initialized to
Setting ADMOD1<ADCH2:0> selects one of the input pins AN0 to AN7 as the input
channel.
Setting ADMOD1<ADCH2:0> selects one of the eight scan modes.
<ADCH2:0>
000
001
010
011
100
101
110
111
Table 3.11.1 Analog Input Channel Selection
<SCAN> = “0”
Channel fixed
92CM22-206
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN0
AN0 → AN1
AN0 → AN1 → AN2
AN0 → AN1 → AN2 → AN3
AN0 → AN1 → AN2 → AN3
→ AN4
AN0 → AN1 → AN2 → AN3
→ AN4 → AN5
AN0 → AN1 → AN2 → AN3
→ AN4 → AN5 → AN6
AN0 → AN1 → AN2 → AN3
→ AN4 → AN5 → AN6 → AN7
<SCAN> = “1”
Channel scan
SYS
), then set ADMOD0<ADS> to 1.
TMP92CM22
2007-02-16