TMP92xy21FG Toshiba, TMP92xy21FG Datasheet - Page 311
TMP92xy21FG
Manufacturer Part Number
TMP92xy21FG
Description
Manufacturer
Toshiba
Datasheet
1.TMP92XY21FG.pdf
(544 pages)
Specifications of TMP92xy21FG
Package
LQFP144
Rom Types(m=mask,p=otp, F=flash,e=eeprom)
Romless
Rom Combinations
Romless
Ram Combinations
16
Architecture
32-bit CISC
Usb/spi Channels
-
Uart/sio Channels
2
I2c/sio Bus Channels
-
(s)dram Controller
1
Adc 10-bit Channel
4
Da Converter
-
Timer 8-bit Channel
4
Timer 16-bit Channel
1
Pwm 8-bit Channels
-
Pwm 16-bit Channels
-
Cs/wait Controller
4
Dual Clock
Y
Number Of I/o Ports
82
Power Supply Voltage(v)
3.0 to 3.6
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3.11.2
Description of Operation
(1) Analog reference voltage
(2) Analog input channel selection
<ADCH1:0>
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.
<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 fc), then set ADMOD0<ADS> to 1.
AD converter.
•
•
00. 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.
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, write a 0 to ADMOD1
The analog input channel selection varies depending on the operation mode of the
Table 3.11.1 illustrates analog input channel selection in each operation mode.
On a reset, ADMOD0<SCAN> is set to 0 and ADMOD1<ADCH1:0> is initialized to
00
01
10
11
In analog input channel fixed mode (ADMOD0<SCAN> = 0)
Setting ADMOD1<ADCH1:0> selects one of the input pins AN0 to AN3 as the
input channel.
In analog input channel scan mode (ADMOD0<SCAN> = 1)
Setting ADMOD1<ADCH1:0> selects one of the four scan modes.
Table 3.11.1 Analog Input Channel Selection
Channel Fixed
<SCAN> = “0”
AN0
AN1
AN2
AN3
92CH21-309
AN0
AN0 → AN1
AN0 → AN1 → AN2
AN0 → AN1 → AN2 → AN3
Channel Scan
<SCAN> = “1”
TMP92CH21
2009-06-19
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