TMP92xy29FG Toshiba, TMP92xy29FG Datasheet - Page 115
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TMP92xy29FG
Manufacturer Part Number
TMP92xy29FG
Description
Manufacturer
Toshiba
Datasheet
1.TMP92XY29FG.pdf
(764 pages)
Specifications of TMP92xy29FG
Package
QFP176
Rom Types(m=mask,p=otp, F=flash,e=eeprom)
Romless
Rom Combinations
Romless
Ram Combinations
144
Architecture
32-bit CISC
Usb/spi Channels
1/1
Uart/sio Channels
2
I2c/sio Bus Channels
1
(s)dram Controller
1
Adc 10-bit Channel
6
Da Converter
-
Timer 8-bit Channel
8
Timer 16-bit Channel
2
Pwm 8-bit Channels
-
Pwm 16-bit Channels
-
Cs/wait Controller
4
Dual Clock
Y
Number Of I/o Ports
98
Power Supply Voltage(v)
3.0 to 3.6
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Sample 4: Calculation example for CPU + LDMA+ ARDMA + HDMA
Conditions:
Calculation example:
possible.
calculated as follows:
time (maximum HDMA time) must be set to 30.92 [μs] or less. Although transferring
all 5Kbytes from the internal RAM to I
maximum HDMA time should be limited by using the HDMATR register.
CPU operation speed (f
Display RAM
Display quality
Refresh rate
SDRAM Auto Refresh
SDRAM
HDMA
t
LHSYNC [period: s] = 1/70 [Hz] /(COM+20 = 260) = 54.95 [μs]
t
LCD driver data transfer time [s]
Since LHSYNC [period: s] < LCD driver data transfer time [s], this setting is not
When the transfer speed is changed to × 4, the LCD driver data transfer time is
(The transfer speed should be adjusted according to the required specifications.)
LHSYNC [period: s] − LCD driver data transfer time [s] − t
To realize proper LCD display, the maximum time HDMA can occupy the bus at a
STOP
STOP
(LDMA) =((SegNum × K / 8) × t
(HDMA) = (((1 + 2) × 16) × 80) + 80 + 160) / f
LCD driver data transfer time [s]
= ((320 ×16 / 8) × 1 / f
= ((640) ×16.67 [ns] / 4) + 16.67 [ns]
= 2.68 [μs]
SYS
92CF29A-113
: QVGA (320seg × 240com)
: 65536 colors (TFT)
: 70 Hz (including 20 clocks of dummy cycles)
: Every 936 states (15.6 μs)
: 16-bit width
: Transfers 5 Kbytes from internal RAM to I
= SegNum × (1/ f
= 320 × (1/60 MHz) × 16 = 85 [μs]
= SegNum × (1/ f
= 320 × (1 / 60MHz) × 4 = 21.3 [μs]
= 54.95 [μs] − 21.3 [μs] − 2.68 [μs] = 30.94 [μs]
): 60 MHz
SYS
LRD
2
S requires t
[Hz] / 4) + (1 / f
SYS
SYS
) + (1 / f
) × (LD bus transfer speed)
) × (LD bus transfer speed)
SYS
SYS
STOP
[Hz])
[s] = 68 [μs]
SYS
STOP
(HDMA) = 68 [μs], the
[Hz])
(LDMA)
TMP92CF29A
2
S
2009-06-11
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