tmp88f846ug TOSHIBA Semiconductor CORPORATION, tmp88f846ug Datasheet - Page 229

• Manufacturer Part Number: tmp88f846ug
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

19.16UART Timing
RESET pin
RXD pin
TXD pin
RXD pin
TXD pin
Table 19-20 UART Timing-2 (VDD = 4.5 to 5.5 V, fc = 20 MHz, Topr = -10 to 40°C)
Table 19-19 UART Timing-1 (VDD = 4.5 to 5.5 V, fc = 20 MHz, Topr = -10 to 40°C)
Time from the reset release to the acceptance of start bit of RXD pin
Matching data transmission interval
Time from the echo back of matching data to the acceptance of baud rate
modification data
Time from the echo back of baud rate modification data to the acceptance
of an operation command
Time from the echo back of operation command to the acceptance of
password count storage addresses (Upper byte)
Time from matching data reception to the echo back
Time from baud rate modification data reception to the echo back
Time from operation command reception to the echo back
Checksum calculation time
Erasure time of an entire flash memory
Erasure time for a sector of a flash memory (in 4-kbyte units)
RXsup
Parameter
Parameter
(5AH)
(5AH)
CMeb1
CMtr1
(5AH)
CMtr2
Page 219
(5AH)
(28H)
Symbol
CMeb1
CMeb2
CMeb3
CEsec
CKsm
CEall
CMeb2
Symbol
RXsup
CMtr1
CMtr2
CMtr3
CMtr4
Clock Frequency (fc)
(28H)
Approx. 7864500
Clock Frequency (fc)
Approx. 930
Approx. 980
Approx. 800
CMtr3
-
-
28500
2100
380
650
800
(5AH)
(30H)
CMeb3
Required Time
At fc = 20 MHz
Required Time
At fc = 20 MHz
Minimum
46.5 µs
49.0 µs
0.39 s
30 ms
15 ms
40 µs
Minimum
105.0 ms
1.43 ms
19.0 µs
32.5 µs
40 µs
TMP88F846UG
(30H)
CMtr4