tmp88fw45afg TOSHIBA Semiconductor CORPORATION, tmp88fw45afg Datasheet - Page 279

• Manufacturer Part Number: tmp88fw45afg
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

21.16
Table 21-20 UART Timing-2 (VDD = 4.5 to 5.5 V, fc = 8 to 20 MHz, Topr = -10 to 40˚C)
Table 21-19 UART Timing-1 (VDD = 4.5 to 5.5 V, fc = 8 to 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 pass-
word count storage addresses (Upper byte)
RESET pin
RXD pin
TXD pin
RXD pin
TXD pin
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)
UART Timing
Parameter
RXsup
Parameter
(5AH)
(5AH)
CMeb1
CMtr1
(5AH)
CMtr2
Page 265
Symbol
CMeb1
CMeb2
CMeb3
CEsec
CKsm
CEall
(5AH)
(28H)
Symbol
RXsup
CMtr1
CMtr2
CMtr3
CMtr4
Clock Frequency (fc)
CMeb2
Approx. 7864500
Approx. 930
Approx. 980
Approx. 800
Clock Frequency (fc)
-
-
(28H)
28500
2100
380
650
800
CMtr3
(5AH)
At fc = 8 MHz
(30H)
122.5 μs
116.3μs
At fc = 8 MHz
100 μs
0.98 s
30 ms
15 ms
Minimum Required Time
262.5 μs
81.25 μs
3.56 ms
47.5 μs
100 μs
Minimum Required Time
CMeb3
TMP88FW45AFG
(30H)
At fc = 20 MHz
At fc = 20 MHz
46.5 μs
49.0 μs
0.39 s
30 ms
15 ms
105.0 μs
40 μs
1.43 ms
19.0 μs
32.5 μs
40 μs
CMtr4