Epson S1C88650 - Manual (Page 33)

S1C88650 TECHNICAL MANUAL EPSON 25
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (I/O Memory Map)
Table 5.1.1(h) I/O Memory map (00FF38H–00FF3DH)
SR R/W Address Bit Name Function Comment 1 0
D7
D6
D5
D4
D3
D2
D1
D0
00FF38 MODE16_B
PTNREN_B
–
RPTOUT2
PTOUT2
PTRUN2
PSET2
CKSEL2
"0" when being read
"0" when being read
0
0
–
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
W
R/W
PTM2–3 8/16-bit mode selection
External clock 1 noise rejecter selection
–
PTM2 inverted clock output control
PTM2 clock output control
PTM2 Run/Stop control
PTM2 preset
PTM2 input clock selection
16 - bit x 1
Enable
–
On
On
Run
Preset
External clock
8 - bit x 2
Disable
–
Off
Off
Stop
No operation
Internal clock
00FF39 D7
D6
D5
D4
D3
D2
D1
D0
–
–
–
RPTOUT3
PTOUT3
PTRUN3
PSET3
CKSEL3
–
–
–
PTM3 inverted clock output control
PTM3 clock output control
PTM3 Run/Stop control
PTM3 preset
PTM3 input clock selection
Constantly "0" when
being read
"0" when being read
–
–
–
0
0
0
0
0
R/W
R/W
R/W
W
R/W
–
–
–
Off
Off
Stop
No operation
Internal clock
–
–
–
On
On
Run
Preset
External clock
D7
D6
D5
D4
D3
D2
D1
D0
RDR27
RDR26
RDR25
RDR24
RDR23
RDR22
RDR21
RDR20
PTM2 reload data D7 (MSB)
PTM2 reload data D6
PTM2 reload data D5
PTM2 reload data D4
PTM2 reload data D3
PTM2 reload data D2
PTM2 reload data D1
PTM2 reload data D0 (LSB)
1 R/W High Low
00FF3A
D7
D6
D5
D4
D3
D2
D1
D0
RDR37
RDR36
RDR35
RDR34
RDR33
RDR32
RDR31
RDR30
PTM3 reload data D7 (MSB)
PTM3 reload data D6
PTM3 reload data D5
PTM3 reload data D4
PTM3 reload data D3
PTM3 reload data D2
PTM3 reload data D1
PTM3 reload data D0 (LSB)
1 R/W High Low
00FF3B
D7
D6
D5
D4
D3
D2
D1
D0
CDR37
CDR36
CDR35
CDR34
CDR33
CDR32
CDR31
CDR30
PTM3 compare data D7 (MSB)
PTM3 compare data D6
PTM3 compare data D5
PTM3 compare data D4
PTM3 compare data D3
PTM3 compare data D2
PTM3 compare data D1
PTM3 compare data D0 (LSB)
0 R/W High Low
00FF3D
D7
D6
D5
D4
D3
D2
D1
D0
CDR27
CDR26
CDR25
CDR24
CDR23
CDR22
CDR21
CDR20
PTM2 compare data D7 (MSB)
PTM2 compare data D6
PTM2 compare data D5
PTM2 compare data D4
PTM2 compare data D3
PTM2 compare data D2
PTM2 compare data D1
PTM2 compare data D0 (LSB)
0 R/W High Low
00FF3C