TMP92CF26AXBG Toshiba, TMP92CF26AXBG Datasheet - Page 106

• Manufacturer Part Number: TMP92CF26AXBG
• Description: Microcontrollers (MCU) TLCS-900/H1 ROMLESS 144KB RAM
• Manufacturer: Toshiba

Specifications of TMP92CF26AXBG

• Processor Series: TLCS-900
• Core: 900/H
• Data Bus Width: 16 bit
• Program Memory Type: ROM
• Program Memory Size: 8 KB
• Data Ram Size: 144 KB
• Interface Type: I2C, I2S, UART, USB
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 136
• Number Of Timers: 10
• Maximum Operating Temperature: + 50 C
• Mounting Style: SMD/SMT
• Package / Case: FBGA-228
• Development Tools By Supplier: BM1040R0A, BM1055R0B, SW96CN0-ZCC, SW00MN0-ZCC
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit, 6 Channel
• Lead Free Status / Rohs Status: Details

Sample3: Calculation example for CPU + LDMA + ARDMA
Conditions:
Calculation example:
CPU operating speed (f
t
Since SDRAM is auto-refreshed once or less in 5.47 [μs]:
t
CPU bus stop rate
STOP
STOP
(LDMA)
(ARDMA)
Display RAM
Display size
Display quality
Refresh rate
SDRAM auto refresh
LHSYNC [period:s]
SYS
92CF26A-105
=((SegNum × K / 8) × t
= 2 / f
= t
)
STOP
SYS
(LDMA･ARDMA) [s] / LHSYNC [period:s]
: 60 MHz
: 16-bit external SDRAM
: QVGA (320seg × 240com)
: 65536 colors (TFT)
: 70 Hz (including 20 clocks of dummy cycles)
: Every 936 states (15.6 μs)
= ((320 ×16 / 8) × 1 / f
= ((640) × 16.67 [ns] / 2) + 133.33 [ns]
= 5.47 [μs]
= 1/70 [Hz] / (COM + 20 = 260) = 54.95 [μs]
= (5.47 [μs] + 33.33 [ns]) / 54.95 [μs] = 10.01 [%]
[Hz] = 33.33 [ns]
LRD
) + (8 / f
SYS
SYS
[Hz] / 2) + (8 / f
[Hz])
TMP92CF26A
2007-11-21
SYS
[Hz])