SX18AA100-I/DP ETC [List of Unclassifed Manufacturers], SX18AA100-I/DP Datasheet - Page 14

• Manufacturer Part Number: SX18AA100-I/DP
• Description: Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
• Manufacturer: ETC [List of Unclassifed Manufacturers]

SX18AC/SX20AC/SX28AC/SX18AC75/SX20AC75/SX28AC75
5.2 FUSEX Word (Read/Program via Programming Command)
5.3 DEVICE Word (Hard-Wired Read-Only)
© 2000 Scenix Semiconductor, Inc. All rights reserved.
IRCTRIM2:
IRCTRIM0
PINS
OPTIONX/
STACKX
CF
BOR1: BOR0 Brown-Out Reset;These bits enable or disable the brown-out reset function and set the brown-out
BORTRIM1:
BORTRIM2
BP1:BP0
IRCTRIM2
Bit 11
Bit 11
1
PINS
1
Internal RC oscillator trim bits. This 3-bit field adjusts the operation of the internal RC oscillator to make
it operate within the target frequency range 4 MHz plus or minus 8%. Parts are shipped from the factory
untrimmed. The device relies on the programming toll to provide the trimming function.
000b = minimum frequency
111b = maximum frequency
each step about 3%
Selects the number of pins.
0 = 18/20 pins
0 = 28 pins
OPTION Register Extension and Stack Extension. Set to 1 to disable the programmability of bit 6 and
bit 7 in the OPTION register, the RTW and RTE_IE bits (in other words, to force these two bits to 1) and
to limit the program stack size to two locations. Clear to 0 to enable programming of the RTW and
RTE_IE bits in the OPTION register, and to extend the stack size to eight locations.
active low – makes carry bit input to ADD and SUB instructions.
threshold voltage as follows:
00b = 4.2V
01b = 2.6V
10b = 2.2V
11b = Brown-Out disabled
Brown-Out trim bits (parts are shipped out of factory untrimmed).
Configure Memory Size:
00b =
01b =
10b =
11b =
IRCTRIM1
1
1 page, 1 bank
1 page, 2 banks
4 pages, 4 banks
4 pages, 8 banks
IRCTRIM0
1
1
OPTIONX/
STACKX
(default configuration)
1
- 14 -
CF BOR1
0
BOR0
0
BORTRIM1
1
1
BORTRIM0
1
www.scenix.com
BP1
Bit 0
Bit 0
0
BP0