TMPM330 - Keil

Under development
TMPM330 (rev 0.4)17-49
TMPM330
(5) Flash control/ status register
This resister is used to monitor the status of the flash memory and to indicate the protection status of
each block.
Table 17-16 Flash Control Register
31 30 29 28 27 26 25 24
bit Symbol - - - - - - - -
FLCS Read/Write R
0x4004_0520 After reset 0
Function “0” is read.
23 22 21 20 19 18 17 16
bit Symbol - - BLPRO5 BLPRO4 BLPRO3 BLPRO2 BLPRO1 BLPRO0
Read/Write R R R R R R R
After reset 0 0 0 0 0 0 0
Function
“0” is read. Protection
for Block
5
0: disabled
1:enabled
Protection
for Block 4
0: disabled
1:enabled
Protection
for Block 3
0: disabled
1:enabled
Protection
for Block 2
0: disabled
1:enabled
Protection
for Block 1
0: disabled
1:enabled
Protection
for Block 0
0: disabled
1:enabled
15 14 13 12 11 10 9 8
bit Symbol - - - - - - - -
Read/Write R
After reset 0
Function “0” is read.
7 6 5 4 3 2 1 0
bit Symbol - - - - - - - RDY/BSY
Read/Write R R
After reset 0 1
“0” is read. Ready/Bus
y
0:Auto
Function
operating
1:Auto
operation
terminated
Bit 0: Ready/Busy flag bit
The RDY/BSY 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."
Bit [21:16]: Protection status bits
Each of the protection bits (6 bits) represents the protection status of the corresponding
block. 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.
(Note) Please issue it after confirming the command issue is always a ready state. 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.
Flash Memory Operation