E202075_HD404889 Datasheet, PDF(26/202 Page) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

E202075_HD404889 Datasheet, PDF (26/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

◁

HD404889/HD404899/HD404878/HD404868 Series

HD404889 Series

$000

$03F

$040

$04F

$050

$06F

$070

$08F

$090

RAM-mapped

Memory register (MR) area

(16 digits)

LCD data area

(32 digits)

Not used

Data (464 digits)

V = 0 (bank = 0)

$25F

$260

$38F

$390

$3BF

$3C0

$3FF

Data (304 digits)

Not used

Stack area

(64 digits)

$000

$001

$002

Interrupt control bit area

$003

$004 Speed Select Reg.

(SSR) W

$005 Miscellaneous Reg.

(MIS) W

$006 Edge Select Reg.

(ESR) W

$007

Not used

$008 Port Mode Reg.0

(PMR0) W

$009 Port Mode Reg.1

(PMR1) W

$00A Port Mode Reg.2

(PMR2) W

$00B Port Mode Reg.3

(PMR3) W

$00C Port Mode Reg.4

(PMR4) W

$00D Module Standby Reg.1

(MSR1) W

$00E Module Standby Reg.2

(MSR2) W

$00F Timer Mode Reg.A

(TMA) W

$010 Timer Mode Reg.B1

(TMB1) W

$011 Timer Mode Reg.B2

(TMB2) W

$012

$013

Timer-B

(TRBL/TWBL) R/W

(TRBU/TWBU) R/W

$014 Timer Mode Reg.C1

(TMC1) W

$015 Timer Mode Reg.C2

(TMC2) W

$016

$017

Timer-C

(TRCL/TWCL) R/W

(TRCU/TWCU) R/W

$018 Timer Mode Reg.D1

(TMD1) W

$019 Timer Mode Reg.D2

(TMD2) W

Data (464 digits)

$01A

$01B

Timer-D

$01C

(TRDL/TWDL) R/W

(TRDU/TWDU) R/W

V = 1 (bank = 1)

$01D

$01E

Not used

$01F

$020

$021

$022

$023

$024 Serial Mode Reg.1

(SMR1) W

$025 Serial Mode Reg.2

(SMR2) W

$026 Serial Data Reg.Lower

(SRL) R/W

$027 Serial Data Reg.Upper

(SRU) R/W

$028 A/D Mode reg.

(AMR) W

$029

Not used

$02A A/D Data Reg.Lower

(ADRL) R

$02B A/D Data Reg.Upper

(ADRU) R

$02C LCD Control Reg.

(LCR) W

$02D LCD Mode Reg.

(LMR) W

$02E Buzzer Mode Reg.

(BMR) W

$02F

Not used

$030 Port D0~D3 DCR

(DCD0) W

$031 Port D4~D7 DCR

(DCD1) W

$032 Port D8~D11 DCR

(DCD2) W

$033

Not used

$034 Port R0 DCR

(DCR0) W

$035 Port R1 DCR

(DCR1) W

$036 Port R2 DCR

(DCR2) W

$037 Port R3 DCR

(DCR3) W

$038 Port R4 DCR

(DCR4) W

$039 Port R5 DCR

(DCR5) W

$03A Port R6 DCR

(DCR6) W

$03B Port R7 DCR

(DCR7) W

$03C Port R8 DCR

(DCR8) W

$03D

$03E

Not used

$03F Vreg.

(V) R/W

Notes: R : Read

W : Write

R/W : Read/Write

*Two registers are mapped onto the

same address ($012, $013, $016,

$017, $01A, $01B).

$012 Timer Read Reg.B Lower

$013 Timer Read Reg.B Upper

$016 Timer Read Reg.C Lower

$017 Timer Read Reg.C Upper

$01A Timer Read Reg.D Lower

$01B Timer Read Reg.D Upper

(TRBL) R Timer Write Reg.B Lower

(TRBU) R Timer Write Reg.B Upper

(TRCL) R Timer Write Reg.C Lower

(TRCU) R Timer Write Reg.C Upper

(TRDL) R Timer Write Reg.D Lower

(TRDU) R Timer Write Reg.D Upper

(TWBL) W

(TWBU) W

(TWCL) W

(TWCU) W

(TWDL) W

(TWDU) W

Figure 2 RAM Memory Map

▷