s5u1c33000c Epson Electronics America, Inc., s5u1c33000c Datasheet - Page 349

• Manufacturer Part Number: s5u1c33000c
• Description: Cmos 32-bit Single Chip Microcomputer S5u1c33000c Manual
• Manufacturer: Epson Electronics America, Inc.

16.10.2 Commands to Operate Memory
fb (fill byte)
This command rewrites the entire contents of a specified memory area with the specified byte data.
(1) fb
(2) fb <address1> <address2> <data>
Format 1)
Format 2)
Using symbols)
S5U1C33000C MANUAL
(C COMPILER PACKAGE FOR S1C33 FAMILY) (Ver. 4)
Function
Formats
Input examples
Notes
The addresses specified here must be within the range of 0 to 0xfffffff. An error results if this limit is
exceeded. In Format 1, a guidance is displayed prompting you to input an address again. In Format 2, the
command input is canceled.
An error results if the start address is larger than the end address.
This command does not issuer an error even if the address range specified for write includes an unused area.
All valid locations except the unused area are rewritten with the specified data.
Data must be input within a range of 8 bits (0 to 0xff). An error results if this limit is exceeded. In Format 1, a
guidance is displayed prompting you to input data again. In Format 2, command input is canceled.
The fb command does not update the display contents of the [Memory] and [Source] windows. To update the
display contents, redisplay the window with the display command or scroll the window in the vertical
direction.
The source displayed in the [Source] window remain unchanged even if the program area is rewritten.
If a large memory area is rewritten at one time in ICE mode, a time-out error may occur, because such
operation takes a long time.
<address1>: Start address of specified range (hexadecimal or symbol)
<address2>: End address of specified range (hexadecimal or symbol)
<data>:
Conditions: 0
In both of these examples, the entire memory area from 0x0 to 0xf is rewritten with data 0x1.
When rewriting the codes generated from an assembly source, line numbers can be used for
specifying the addresses.
Error: Address range (0-0xFFFFFFF).
Error: address1 > address2
Error: Data range (0-0xFF).
Write data (hexadecimal)
address1
address2
Command execution can be canceled by entering the [Enter] key only.
...Start address is input. (symbol can be used)
...End address is input. (symbol can be used)
...Write data is input.
0xfffffff, 0
EPSON
(guidance mode)
(direct input mode)
data
0xff
CHAPTER 16: DEBUGGER
[ICD / ICE / SIM / MON]
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