Page 364
22. Serial PROM Mode
22.14 AC Characteristics (UART)
TMP89FM42
RA002
22.14AC Characteristics (UART)
Table 22-24 UART Timing-1
Parameter
Symbol
Clock frequency
(fcgck)
Minimum required time
At fcgck = 1 MHz
At fcgck = 10 MHz
Time from when MCU receives 0x86 to when it echoes back
CMeb1
Approx. 660
660
µ
s
66
µ
s
Time from when MCU receives 0x79 to when it echoes back
CMeb2
Approx. 540
540
µ
s
54
µ
s
Time from when MCU receives an operation command to when it
echoes back
CMeb3
Approx. 300
300
µ
s
30
µ
s
Time required to calculate the checksum (flash memory)
CMfsm
Approx. 1493340
(32KB)
1.5 s
149 ms
Time required to calculate the checksum (RAM)
CMrsm
Approx. 160
160
µ
s
16
µ
s
Time when MCU receives Intel Hex data to when it transmits over-
write detection data
CMwr
Approx. 200
200
µ
s
20
µ
s
Time from when MCU receives data (number of read bytes) to
when it transmits memory data
CMrd
Approx. 430
430
µ
s
43
µ
s
Time from when MCU receives data (mask ROM emulation setting
data) to when it echoes back
CMem2
Approx. 420
420
µ
s
42
µ
s
Time required to enable the security program
CMrp
Approx. 1080
1.08 ms
108
µ
s
Table 22-25 UART Timing-2
Parameter
Symbol
Clock frequency
(fcgck)
Minimum required time
At fcgck = 1 MHz
At fcgck = 10 MHz
Time required to keep MODE and RESET pins at L after power-on
RSsup
-
10 ms
Time from when MODE and RESET pins are set to H to the accep-
tance of RXD
RXsup
-
20 ms
Time from when MCU echoes back 0x86 to the acceptance of
RXD
CMtr1
Approx. 140
140
µ
s
14
µ
s
Time from when MCU echoes back 0x79 to the acceptance of
RXD
CMtr2
Approx. 90
90
µ
s
9
µ
s
Time from when MCU echoes back an operation command to the
acceptance of RXD
CMtr3
Approx. 270
270
µ
s
27
µ
s
Time from when the execution of a current command is completed
to the acceptance of the next operation command
CMnx
Approx. 1100
1.1 ms
110
µ
s
Summary of Contents for TLCS-870/C1 Series
Page 1: ...8 Bit Microcontroller TLCS 870 C1 Series TMP89FM42 查询TMP89FM42供应商 捷多邦 专业PCB打样工厂 24小时加急出货 ...
Page 3: ...Revision History Date Revision 2007 10 25 1 First Release 2007 11 3 2 Contents Revised ...
Page 4: ......
Page 14: ......
Page 18: ...1 3 Block Diagram TMP89FM42 1 3 Block Diagram Figure 1 2 Block Diagram ...
Page 22: ...1 4 Pin Names and Functions TMP89FM42 ...
Page 60: ...2 CPU Core 2 5 Revision History TMP89FM42 ...
Page 76: ...3 Interrupt Control Circuit 3 8 Revision History TMP89FM42 ...
Page 86: ...4 External Interrupt control circuit 4 3 Function TMP89FM42 ...
Page 102: ...7 Voltage Detection Circuit 7 5 Revision History TMP89FM42 ...
Page 126: ...8 I O Ports 8 3 I O Port Registers TMP89FM42 Note 2 i 0 to 1 ...
Page 136: ...8 I O Ports 8 5 Revision History TMP89FM42 ...
Page 142: ...9 Special Function Registers 9 3 SFR3 0x0E40 to 0x0EFF TMP89FM42 ...
Page 146: ...10 Low Power Consumption Function for Peripherals TMP89FM42 ...
Page 149: ...TMP89FM42 11 3 Revision History Rev Description RA001 Deleted SLEEP2 description ...
Page 150: ...11 Divider Output DVO 11 3 Revision History TMP89FM42 ...
Page 220: ...15 Real Time Clock RTC 15 4 Real Time Clock Operation TMP89FM42 ...
Page 250: ...16 Asynchronous Serial Interface UART 16 15 Revision History TMP89FM42 ...
Page 302: ...18 Serial Bus Interface SBI 18 7 Revision History TMP89FM42 ...
Page 338: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 ...
Page 384: ...22 Serial PROM Mode 22 15 Revision History TMP89FM42 ...
Page 388: ...24 Input Output Circuit 24 1 Control Pins TMP89FM42 ...
Page 404: ...25 Electrical Characteristics 25 11 Revision History TMP89FM42 ...
Page 406: ...26 Package Dimensions TMP89FM42 ...
Page 408: ......