upd75238 Renesas Electronics Corporation., upd75238 Datasheet - Page 148
upd75238
Manufacturer Part Number
upd75238
Description
4 Bit Single-chip Microcomputer
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD75238.pdf
(190 pages)
- Current page: 148 of 190
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148
Program counter (PC)
PSW
Data memory (RAM)
General registers (X, A, H, L, D, E, B, C)
Bank select register (MBS, RBS)
Stack pointer (SP)
Stack bank select register (SBS)
Basic interval
timer
Timer/event
counter
Watch timer
Timer/pulse
generator
Event counter
Serial interface
(Channel 0)
Serial interface
(Channel 1)
Carry flag (CY)
Skip flags (SK0 to SK2)
Interrupt status flags (IST1, IST2)
Bank enable flags (MBE, RBE)
Counter (BT)
Mode register (BTM)
Counter (T0)
Modulo register (TMOD0)
Mode register (TM0)
TOE0, TOUT F/F
Mode register (WM)
Modulo registers (MODH, MODL)
Mode register (TPGM)
Counter (T1)
Mode register (TM1)
Gate control register (GATEC)
Shift register (SIO0)
Operation mode register
(CSIM0)
SBI control register (SBIC)
Slave address register (SVA)
P01/SCK0 output latch
Shift register (SIO1)
Operation mode register
(CSIM1)
Serial transfer end flag (EOT)
Hardware
Table 7-1 Statuses of the Hardware after a Reset (1/2)
RESET input in a standby mode
Low-order 6 bits at address 0000H
in program memory are set in PC
bits 13 to 8, and the data at address
0001H are set in PC bits 7 to 0.
Held
0
0
Bit 6 at address 0000H in pro-
gram memory is set in RBE, and
bit 7 is set in MBE.
Held
Held
0, 0
Undefined
Undefined
Undefined
0
0
FFH
0
0, 0
0
Held
0
0
0
0
Held
0
0
Held
1
Held
0
0
Low-order 6 bits at address 0000H
in program memory are set in PC
bits 13 to 8, and the data at address
0001H are set in PC bits 7 to 0.
Undefined
0
0
Bit 6 at address 0000H in pro-
gram memory is set in RBE, and
bit 7 is set in MBE.
Undefined
Undefined
0, 0
Undefined
Undefined
Undefined
0
0
FFH
0
0, 0
0
Held
0
0
0
0
Undefined
0
0
Undefined
1
Undefined
0
0
RESET input during operation
PD75238
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