TMP1942FDU Datasheet, PDF (79/106 Pages) Toshiba Semiconductor – 32bit TX System RISC

TMP1942FD
Pin Name
RESET
BW0
BW1
P40
P41, P42, P43
NMI
X1
X2
P44
P00-P07
P20-P23
P50- P57
P60- P67
P90-P97
PA0-PA7
PC0-PC7
PD3, PD4
PF0- PF7
PLLOFF
TEST
DVCC3, DVCC51, 52
DVSS
CVCC
CVSS
AVCC, DAVCC
AVSS, DAVSS
VREFH
VREFL
Table 3.4.8 Settings of the Other Pins
# of Pins Type
Setting
1
Input Tie to logic 0 (0V). (Programmer mode setting)
1
Input Tie to logic 0 (0 V). (Programmer mode setting)
1
Input Tie to logic 1 (3 V). (Programmer mode setting)
1
Input Tie to logic 1 (3 V). (Programmer mode setting)
3
Input Tie to logic 0 (0 V). (Programmer mode setting)
1
Input Tie to logic 1 (3 V).
1
Input Connect a 20-MHz crystal for self-oscillation.
1
Output
1
Input Tie to logic 0 (0 V).
8
Input Tie to logic 1 (3 V).
4
Input Tie to logic 1 (3 V).
８
Input Tie to logic 1 (3 V).
８
Input Tie to logic 1 (3 V).
8
Input Tie to logic 1 (3 V).
8
Input Tie to logic 1 (3 V).
8
Input Tie to logic 1 (3 V).
2
Input Tie to logic 1 (3 V).
8
Input Tie to logic 0 (0 V).
1
Input Tie to logic 0 (0 V).
1
Input Tie to logic 0 (0 V).
6
Input Tie to logic 1 (3 V).
5
Input 0 V
1
Input Tie to logic 1 (3 V).
1
Input 0 V
2
Input Tie to logic 1 (3 V).
2
Input 0 V
1
Input Tie to logic 1 (3V).
1
Input 0 V
3.4.2.4
Key Features
The TMP1942FD flash memory commands are in principle compatible with the
standard JEDEC commands. After a command sequence is written, the flash memory
does not require the system to provide further controls or timings. The flash memory
initiates the embedded program or erase algorithm automatically. The entire flash
memory or one or more flash blocks can be erased at a time.
Feature
Auto Program
Auto Chip Erase
Auto Block Erase
Auto Multi-Block Erase
Write operation status
Security feature
Block protection
Table 3.4.9 Flash Memory Features
Description
Programs and verifies the desired addresses word by word automatically.
Erases and verifies the entire memory array automatically.
Erases and verifies all memory locations in the selected block automatically.
Erases and verifies all memory locations in multiple selected blocks automatically.
Provides several status bits such as the Data Polling bit and Toggle bit, which can be used to determine
whether a program or erase operation is complete or in progress.
Prevents intrusive access to the flash memory while in Programmer mode. When the security feature is
turned off, the entire memory array is erased and verified automatically, regardless of whether a given
block is protected or not.
Disables both program and erase operations in any block.
All accesses to the flash memory are performed word by word (16 bits), including the
writing of commands. Unless otherwise noted, the subsections that follow indicate
addresses as seen from the programmer.
The program/erase operations of on-board programming modes are very similar to those
TMP1942FD-78