UPD78F9177 NEC, UPD78F9177 Datasheet - Page 17

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UPD78F9177

Manufacturer Part Number
UPD78F9177
Description
8-BIT SINGLE-CHIP MICROCONTROLLER
Manufacturer
NEC
Datasheet

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5.2
the flash memory are performed. Table 5-2 shows the major functions of flash memory programming.
5.3
mode (3-wired serial I/O, SMB, UART, or pseudo 3-wire mode). Figures 5-2 to 5-5 show the connection in the
respective mode.
Batch erase
Batch blank check
Data write
Batch verify
By transmitting/receiving commands and data in the selected communication mode, operations such as writing to
How the Flashpro III is connected to the PD78F9177 and PD78F9177Y differs depending on the communication
Function of Flash Memory Programming
Flashpro III Connection Example
Function
Note n = 1, 2
Figure 5-2. Flashpro III Connection in 3-wired Serial I/O Mode
Flashpro III
Erases all contents of memory
Checks erased state of entire memory
Write to flash memory based on write start address and number of data written
(number of bytes)
Compares all contents of memory with input data
Table 5-2. Functions of Flash Memory Programming
V
RESET
PP
GND
SCK
n
CLK
V
SO
Note
SI
DD
Data Sheet U14022EJ1V0DS00
Description
X1
SCK20
SI20
SO20
V
V
V
RESET
PD78F9177, 78F9177Y
PP
DD0
SS0
, V
, V
PD78F9177, 78F9177Y
SS1
DD1
, A
, AV
VSS
DD
17

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