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ST6215 Datasheet(PDF) 60 Page - STMicroelectronics |
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ST6215 Datasheet(HTML) 60 Page - STMicroelectronics |
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60 / 105 page  ST6215C/ST6225C 60/105 INSTRUCTION SET (Cont’d) Conditional Branch. Branch instructions perform a branch in the program when the selected condi- tion is met. Bit Manipulation Instructions. These instruc- tions can handle any bit in Data space memory. One group either sets or clears. The other group (see Conditional Branch) performs the bit test branch operations. Control Instructions. Control instructions control microcontroller operations during program execu- tion. Jump and Call. These two instructions are used to perform long (12-bit) jumps or subroutine calls to any location in the whole program space. Table 18. Conditional Branch Instructions Notes : b 3-bit address rr Data space register e 5 bit signed displacement in the range -15 to +16 ∆ Affected. The tested bit is shifted into carry. ee 8 bit signed displacement in the range -126 to +129 * Not Affected Table 19. Bit Manipulation Instructions Notes: b 3-bit address * Not Affected rr Data space register Bit Manipulation Instructions should not be used on Port Data Registers and any registers with read only and/or write only bits (see I/O port chapter) Table 20. Control Instructions Notes: 1. This instruction is deactivated and a WAIT is automatically executed instead of a STOP if the watchdog function is selected. ∆ Affected *Not Affected Table 21. Jump & Call Instructions Notes: abc 12-bit address * Not Affected Instruction Branch If Bytes Cycles Flags ZC JRC e C = 1 1 2 * * JRNC e C = 0 1 2 * * JRZ e Z = 1 1 2 * * JRNZ e Z = 0 1 2 * * JRR b, rr, ee Bit = 0 3 5 * ∆ JRS b, rr, ee Bit = 1 3 5 * ∆ Instruction Addressing Mode Bytes Cycles Flags ZC SET b,rr Bit Direct 2 4 * * RES b,rr Bit Direct 2 4 * * Instruction Addressing Mode Bytes Cycles Flags ZC NOP Inherent 1 2 * * RET Inherent 1 2 * * RETI Inherent 1 2 ∆∆ STOP (1) Inherent 1 2 * * WAIT Inherent 1 2 * * Instruction Addressing Mode Bytes Cycles Flags ZC CALL abc Extended 2 4 * * JP abc Extended 2 4 * * 1 |
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