HD404654 Datasheet, PDF (12/111 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer

HD404654 Series
$000
$003
PMRA $004
SM1A $005
SR1L $006
SR1U $007
TMA $008
Bit 3
Bit 2
Bit 1
Bit 0
Interrupt control bits area
R4₂/SI₁
R4₃/SO₁
R4₁/SCK₁ Serial transmit clock speed selection 1
Serial data register 1 (lower digit)
Serial data register 1 (upper digit)
Clock source selection (timer A)
: Not used
MIS $00C
TMC1 $00D
TRCL/TWCL $00E
TRCU/TWCU $00F
TMD1 $010
TRDL/TWDL $011
TRDU/TWDU $012
$013
TMC2 $014
TMD2 $015
$016
CDR $017
CER $018
TGM $019
TGC $01A
*₂
SO₁ PMOS control Interrupt frame period selection
*₁
Clock source selection (timer C)
Timer C register (lower digit)
Timer C register (upper digit)
*₁
Clock source selection (timer D)
Timer D register (lower digit)
Timer D register (upper digit)
Timer-C output mode selection
*₃
Timer-D output mode selection
Result of each analog input comparison
*₄
*₅
TONEC output frequency TONER output frequency
*₆
*₇
DTMF enable
$020
$023
Register flag area
PMRB $024
PMRC $025
D₁₃/INT₀
D₁₂/STOPC R4₀/EVND
R0₀/INT₁
$026
ESR2 $027 ^{EVND detection edge selection}
SM1B $028
*₈
*₉
SSR1 $029
SSR2 $02A
System clock selection
*₁₀
DCD0 $02C
DCD1 $02D
DCD2 $02E
Port D₃ DCR
Port D₇ DCR
Port D₂ DCR
Port D₆ DCR
Port D₁ DCR
Port D₅ DCR
Port D₉ DCR
Port D₀ DCR
Port D₄ DCR
Port D₈ DCR
DCR0 $030
DCR1 $031
DCR2 $032
DCR3 $033
DCR4 $034
Port R0₀ DCR
Port R1₃ DCR Port R1₂ DCR Port R1₁ DCR Port R1₀ DCR
Port R2₃ DCR Port R2₂ DCR Port R2₁ DCR Port R2₀ DCR
Port R3₃ DCR Port R3₂ DCR Port R3₁ DCR Port R3₀ DCR
Port R4₃ DCR Port R4₂ DCR Port R4₁ DCR Port R4₀ DCR
$03F
Notes:
1. Auto-reload on/off
2. Pull-up MOS control
3. Input capture selection
4. Comparator switch
5. Port/comparator selection
6. TONEC output control
7. TONER output control
8. SO₁ output level control in idle states
9. Serial clock source selection 1
10. System clock selection
Figure 5 Special Function Register Area
10