SX28AC/SS Parallax Inc, SX28AC/SS Datasheet - Page 37

• Manufacturer Part Number: SX28AC/SS
• Description: IC MCU 2K FLASH 50MHZ 28SSOP
• Manufacturer: Parallax Inc
• Series: SXr

Specifications of SX28AC/SS

• Core Processor: RISC
• Core Size: 8-Bit
• Speed: 75MHz
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 20
• Program Memory Size: 3KB (2K x 12)
• Program Memory Type: FLASH
• Ram Size: 136 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Product: Microcontroller Basic Stamps
• Flash: 2 KBytes
• Timers: 8 bit
• Operating Supply Voltage: 3 to 5.5 V
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: No RoHS Version Available

Parallax SX20AC/SX28AC
© Parallax Inc.
MOVSZ W,--fr
MOVSZ W,++fr
MOV !OPTION,W
MOV fr,W
MOV W,fr
MOV W,fr-W
MOV W,#lit
MOV W,/fr
MOV W,--fr
MOV W,++fr
MOV W,<<fr
MOV W,>>fr
MOV W,<>fr
MOV W,M
MOV M,W
MOV M,#lit
MOV !rx,W
TEST fr
Mnemonic,
Operands
Move W to fr (fr = W)
Move fr to W (W = fr)
Move (fr-W) to W (W = fr-W); complement of
carry bit is subtracted if CF bit in FUSEX register
is cleared to 0
Move Literal to W (W = lit)
Move Complement of fr to W (W = fr ^ FFh)
Move (fr – 1) to W (W = fr – 1)
Move (fr = 1) to W (W = fr = 1)
Rotate fr Left through Carry and Move to W
(W = >> ffr)
Rotate fr Right through Carry and Move to W (W
= <> fr)
Swap High/Low nibbles of fr and move to W (W =
<>fr)
Move MODE register to W (W = MODE), high
nibble is cleared
Move (fr – 1) to W and Skip if Zero (w = fr – 1 and
skip next instruction if result is zero)
Move (fr + 1) to W and Skip of Zero (W = fr +1
and skip next instruction if result is zero)
Move W to MODE register (MODE = W)
Move Literal to MODE register (MODE = lit)
Move W to Port Rx control register: rx <=> W
(exchange W and WKPND_B or CMP_B or rx =
w (move W to rx for all other port control
registers)
Move W to OPTION register (OPTION = W)
Test fr for zero (fr = fr to set or clear Z bit)
Table 16-4:
Description
Native
SX Instruction Set: Data Movement Instructions
Page 37 of 51
Clock Cycles
(Slow Mode)
4 or 8 (skip)
4 or 8 (skip)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Clock Cycles
1 or 2 (skip)
1 or 2 (skip)
(Turbo)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0000 001f ffff
0010 000f ffff
0000 100f ffff
1100 kkkk kkkk
0010 010f ffff
0000 110f ffff
0010 100f ffff
0011 010f ffff
0011 000f ffff
0011 100f ffff
0000 0100 0010
0010 110f ffff
0011 110f ffff
0000 0100 0011
0000 0101 kkkk
0000 0000 0fff
0000 0000 0010
0010 001f ffff
Opcode
Rev 1.6 11/20/2006
www.parallax.com
Affected
C, DC, Z
none
none
none
none
none
none
none
none
none
none
Bits
C
C
Z
Z
Z
Z
Z