Electronic Components Datasheet Search |
|
CY7C63923-PVXC Datasheet(PDF) 8 Page - Cypress Semiconductor |
|
CY7C63923-PVXC Datasheet(HTML) 8 Page - Cypress Semiconductor |
8 / 68 page CY7C63310 CY7C638xx CY7C639xx Document 38-08035 Rev. *E Page 8 of 68 7.0 CPU Registers 7.1 Flags Register The Flags Register can only be set or reset with logical instruction. 7.1.1 Accumulator Register 7.1.2 Index Register Table 7-1. CPU Flags Register (CPU_F) [R/W] Bit # 7 6 5 4 3 2 1 0 Field Reserved XIO Super Carry Zero Global IE Read/Write ––– R/W R RW RW RW Default 00000010 Bit [7:5]: Reserved Bit 4: XIO Set by the user to select between the register banks 0 = Bank 0 1 = Bank 1 Bit 3: Super Indicates whether the CPU is executing user code or Supervisor Code. (This code cannot be accessed directly by the user) 0 = User Code 1 = Supervisor Code Bit 2: Carry Set by CPU to indicate whether there has been a carry in the previous logical/arithmetic operation 0 = No Carry 1 = Carry Bit 1: Zero Set by CPU to indicate whether there has been a zero result in the previous logical/arithmetic operation 0 = Not Equal to Zero 1 = Equal to Zero Bit 0: Global IE Determines whether all interrupts are enabled or disabled 0 = Disabled 1 = Enabled Note: CPU_F register is only readable with explicit register address 0xF7. The OR F, expr and AND F, expr instructions must be used to set and clear the CPU_F bits Table 7-2. CPU Accumulator Register (CPU_A) Bit # 7 6 5 4 3 2 1 0 Field CPU Accumulator [7:0] Read/Write –––––––– Default 00000000 Bit [7:0]: CPU Accumulator [7:0] 8-bit data value holds the result of any logical/arithmetic instruction that uses a source addressing mode Table 7-3. CPU X Register (CPU_X) Bit # 7 6 5 4 3 2 1 0 Field X [7:0] Read/Write –––––––– Default 00000000 Bit [7:0]: X [7:0] 8-bit data value holds an index for any instruction that uses an indexed addressing mode |
Similar Part No. - CY7C63923-PVXC |
|
Similar Description - CY7C63923-PVXC |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |