UPD75P3116 NEC, UPD75P3116 Datasheet - Page 20

• Manufacturer Part Number: UPD75P3116
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

(3) Description of symbols used in addressing area
Remarks 1. MB indicates access-enabled memory banks.
(4) Description of machine cycles
S indicates the number of machine cycles required for skipping of skip-specified instructions. The value of S varies as
shown below.
One machine cycle equals one cycle (= t
20
*11
*10
*1
*2
*3
*6
*7
*8
*4
*5
*9
• No skip ..................................................................... S = 0
• Skipped instruction is 1-byte or 2-byte instruction .... S = 1
• Skipped instruction is 3-byte instruction
Note 3-byte instructions: BR !addr, BRA !addr1, CALL !addr, and CALLA !addr1
Caution The GETI instruction is skipped for one machine cycle.
MB = MBE • MBS
MB = 0
MBE = 0
MBE = 1
MB = 15, fmem = FB0H to FBFH, FF0H to FFFH
MB = 15, pmem = FC0H to FFFH
addr = 0000H to 3FFFH
addr, addr1 =
caddr = 0000H to 0FFFH (PC
faddr = 0000H to 07FFH
taddr = 0020H to 007FH
addr1 = 0000H to 3FFFH (Mk II mode only)
2. In area *2, MB = 0 for both MBE and MBS.
3. In areas *4 and *5, MB = 15 for both MBE and MBS.
4. Areas *6 to *11 indicate corresponding address-enabled areas.
1000H to 1FFFH (PC
2000H to 2FFFH (PC
3000H to 3FFFH (PC
MBS = 0, 1, 15
:
:
MB = 0 (000H to 07FH)
MB = 15 (F80H to FFFH)
MB = MBS
MBS = 0, 1, 15
(Current PC) –15 to (Current PC) –1
(Current PC) +2 to (Current PC) +16
13
13
13
13
,
,
,
,
12
12
12
12
= 00B) or
= 01B) or
= 10B) or
= 11B)
CY
) of the CPU clock . Use the PCC setting to select among four cycle times.
Note
.............. S = 2
Program memory
Data memory
addressing
addressing
PD75P3116