tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 620
tmp19a44fda
Manufacturer Part Number
tmp19a44fda
Description
32bit Tx System Risc
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TMP19A44FDA.pdf
(672 pages)
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FLCS
(0xFF00_0100)
Flash Memory Operation
bit
Symbol
Read/Writ
e
After
reset
Read/Writ
Read/Writ
Read/Writ
Function
Function
Function
Function
Symbol
Symbol
Symbol
reset
reset
reset
After
After
After
Bit 0: FlashBusy flag bit
(note)Please issue it after confirming the command issue is always a ready state.
Bits [19:16]: Protection status bits (
bit
bit
bit
e
e
e
9) Flash control/ status register
A normal command not only is sent when the command is issued to a busy inside but also there is a possibility
that the command after that cannot be input. In that case, please return by system reset or the reset command.
This resister is used to monitor the status of the flash memory and to indicate the area protection
status.
The FlashBusy output is provided as a means to monitor the status of automatic operation. This bit is a
function bit for the CPU to monitor the function. When the flash memory is in automatic operation, it outputs
"0" to indicate that it is busy. When the automatic operation is terminated, it returns to the ready state and
outputs "1" to accept the next command. If the automatic operation has failed, this bit maintains the "0"
output. By applying a hardware reset, it returns to "1."
Each of the protection bits (4 bits) represents the protection status of the corresponding area. When a bit
is set to "1," it indicates that the block corresponding to the bit is protected. When the block is protected,
data cannot be written to it.
15
23
31
-
-
-
7
0
0
0
0
-
14
22
30
-
-
6
0
0
0
0
Table 24.10 Flash Control Register
TMP19A44 (rev1.3)24-35
-
13
21
29
-
-
5
0
0
0
0
“0” can be read.
12
20
28
-
-
-
“0” can be read.
“0” can be read.
4
0
0
0
0
R
R
R
R
PROTECT3 PROTECT2 PROTECT1 PROTECT0
-
11
-
19
27
3
0
0
0
0
Indicates protection condition.
10
18
26
-
-
2
0
0
0
0
17
25
-
-
9
TMP19A44
1
0
0
0
0
0 : BUSY
1 : READY
FlashBusy
16
24
-
0
1
8
0
0
0
2010-04-01
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