Memory map

Memory map

Introduction
This is the IC-R10 memory map. It is based on information gathered elsewhere on the Net and from Joost's experiences. Please note that this map may be inaccurate and/or incomplete. I'd appreciate any corrections.

Memory map

From (hex) To (hex) Function Size Bytes/entry Remarks

0000 0F9F Channel frequencies 4000 4 see note 1

1000 2F3F Channel names 8000 8 in ASCII

3000 309F Program scan edge frequencies 160 2x4 2x4=8 bytes/range=20 ranges, see note 1

30A0 30EF Easy bank edge frequencies 80 2x4 2x4=8 bytes/range=10 ranges, see note 1

30F0 318F Auto mode edge frequencies 160 2x5 2x5=10 bytes/range=16 ranges, see note 1

3200 333F Program scan edge information 320 8+8 see note 3

3340 33DF Easy bank edge information 160 8+8 see Program scan edge information

3400 351F Bank names 288 10+6 10 bytes ASCII, 6 unused

3600 39E7 Channel modes 1000 1 see note 4

3B50 3B5F Radio identifier 16 16 in ASCII

3C00 3CFF Auto mode edge information 256 6+10 see note 8, 10 bytes unused

3DEC 3DEF User defined tuning step 4 4 see note 7

3DF0 3DF4 Priority frequency 5 5 see note 2

3DF5 Priority ATT 1 1 see note 4, mode not applicable

3DF6 Priority mode 1 1 see note 4, ATT/Skip not applicable

3DF7 Priority NB/ANL 1 1 see note 10

3E00 3E04 VFO frequency 5 5 see note 2

3E05 VFO ATT 1 1 see note 4, mode not applicable

3E06 VFO mode 1 1 see note 4, ATT/Skip not applicable

3E07 VFO tuning step 1 1 see note 6

3E10 3E14 2nd VFO frequency 5 5 see note 2

3E15 2nd VFO ATT 1 1 see note 4, mode not applicable

3E16 2nd VFO mode 1 1 see note 4, ATT/Skip not applicable

3E17 2nd VFO tuning step 1 1 see note 6

3E18 3E1B VFO user defined tuning step 4 4 see note 7

3E1F VSC/NB/ANL/AFC 1 see note 10

3E30 Opening message 1 1 00h=off, 01h=on

3E31 Operation beep 1 1 00h=off, 01h=on

3E32 LCD contrast 1 1 00h=low, 01h=mid-low, 02h=mid-high, 03h=high

3E33 Backlight 1 1 00h=off, 01h=Auto, 02h=On

3E34 Program skip scan 1 1 00h=off, 01h=on

3E35 Memory skip scan 1 1 00h=off, 01h=on

3E36 Power save 1 1 00h=off, 01h=1:4, 02h=1:16

3E37 Scan delay 1 1 00h=5 sec, 01h=10 sec, 02h=Pause

3E3A CI-V address 1 1

3E3B CI-V baudrate 1 1 00h=300, 01h=1200, 02h=4800, 03h=9600, 04h=19200

3E3C CI-V transceive 1 1 00h=off, 01h=on

3EE0 3EEF User comment field 16 16 ASCII

3EF8 3EFF Id field 8 8

Note 1 : Frequency notation A
13 12 75 00 = 131.7500 MHz
B2 00 00 00 = 1200.000 MHz

Note 2 : Frequency notation B
00 00 05 00 00 = 0.50000 MHz
01 30 00 00 00 = 1300.000 MHz

Note 3 : Edge information
8 bytes label info (ASCII), 1 byte unknown, 1 byte mode (see note 4; without ATT/Skip), 1 byte scan delay (see note 5), 1 byte tuning step (see note 6), 4 bytes user tuning step (see note 7)

Note 4 : Modes
x0=FM, x1=WFM, x2=AM, x3=LSB, x4=USB, x5=CW
0x=ATT+Skip off, 2x=ATT, 4x=Skip, 6x=ATT+Skip, 8x=not set

Note 5 : Scan delay
00=5 sec., 01=10 sec., 02=Pause

Note 6 : Tuning step
00=0.1 kHz, 01=0.5 kHz, 02=1 kHz, 03=5 kHz, 04=6.25 kHz, 05=8 kHz, 06=9 kHz, 07=10 kHz, 08=12.5 kHz, 09=15 kHz, 0A=20 kHz, 0B=25 kHz, 0C=30 kHz, 0D=50 kHz, 0E=100 kHz, 40=Auto, 80=User tuning step

Note 7 : User tuning step
09 99 90 00 = 999.9 kHz

Note 8 : Auto mode edge information
09 99 90 00 = 999.9 kHz

Note 9 : Noise blanker
40=on, ??=off

Note 10 : VSC/NB/ANL/AFC
20=AFC, 40=NB/ANL, 60=AFC+NB/ANL, 80=VSC, A0=AFC+VSC, C0=NB/ANL+VSC, E0=AFC+NB/ANL+VSC

Last updated January 18, 1999

From (hex)	To (hex)	Function	Size	Bytes/entry	Remarks
0000	0F9F	Channel frequencies	4000	4	see note 1
1000	2F3F	Channel names	8000	8	in ASCII
3000	309F	Program scan edge frequencies	160	2x4	2x4=8 bytes/range=20 ranges, see note 1
30A0	30EF	Easy bank edge frequencies	80	2x4	2x4=8 bytes/range=10 ranges, see note 1
30F0	318F	Auto mode edge frequencies	160	2x5	2x5=10 bytes/range=16 ranges, see note 1
3200	333F	Program scan edge information	320	8+8	see note 3
3340	33DF	Easy bank edge information	160	8+8	see Program scan edge information
3400	351F	Bank names	288	10+6	10 bytes ASCII, 6 unused
3600	39E7	Channel modes	1000	1	see note 4
3B50	3B5F	Radio identifier	16	16	in ASCII
3C00	3CFF	Auto mode edge information	256	6+10	see note 8, 10 bytes unused
3DEC	3DEF	User defined tuning step	4	4	see note 7
3DF0	3DF4	Priority frequency	5	5	see note 2
3DF5		Priority ATT	1	1	see note 4, mode not applicable
3DF6		Priority mode	1	1	see note 4, ATT/Skip not applicable
3DF7		Priority NB/ANL	1	1	see note 10
3E00	3E04	VFO frequency	5	5	see note 2
3E05		VFO ATT	1	1	see note 4, mode not applicable
3E06		VFO mode	1	1	see note 4, ATT/Skip not applicable
3E07		VFO tuning step	1	1	see note 6
3E10	3E14	2nd VFO frequency	5	5	see note 2
3E15		2nd VFO ATT	1	1	see note 4, mode not applicable
3E16		2nd VFO mode	1	1	see note 4, ATT/Skip not applicable
3E17		2nd VFO tuning step	1	1	see note 6
3E18	3E1B	VFO user defined tuning step	4	4	see note 7
3E1F		VSC/NB/ANL/AFC	1		see note 10
3E30		Opening message	1	1	00h=off, 01h=on
3E31		Operation beep	1	1	00h=off, 01h=on
3E32		LCD contrast	1	1	00h=low, 01h=mid-low, 02h=mid-high, 03h=high
3E33		Backlight	1	1	00h=off, 01h=Auto, 02h=On
3E34		Program skip scan	1	1	00h=off, 01h=on
3E35		Memory skip scan	1	1	00h=off, 01h=on
3E36		Power save	1	1	00h=off, 01h=1:4, 02h=1:16
3E37		Scan delay	1	1	00h=5 sec, 01h=10 sec, 02h=Pause
3E3A		CI-V address	1	1
3E3B		CI-V baudrate	1	1	00h=300, 01h=1200, 02h=4800, 03h=9600, 04h=19200
3E3C		CI-V transceive	1	1	00h=off, 01h=on
3EE0	3EEF	User comment field	16	16	ASCII
3EF8	3EFF	Id field	8	8