Read Panasonic KX-HTS32RU / KX-HTS824RU Service Manual online
17
KX-HTS32\KX-HTS824 Series
4.2.1.4.
ROM Function
System software and several configuration data are stored in NAND Flash ROM on Main unit.
When system start, CPU internal boot rom will read basical operating system software and application software from NAND Flash
memory.
And also, during system operation, system configuration and Voice Mail data will be stored in Flash ROM.
When system start, CPU internal boot rom will read basical operating system software and application software from NAND Flash
memory.
And also, during system operation, system configuration and Voice Mail data will be stored in Flash ROM.
Memory I/F
NAND : 512MBytes (x8bit w/ ECC(4bit/512Bytes)
Bus width
8bit
Memory Cell Spec
Page size : 2048+128spare Bytes
Block size : 128k+8k Bytes
Number of Blocks : up to 4096
Block size : 128k+8k Bytes
Number of Blocks : up to 4096
Power
Operating Voltage : 3.3V
Clock
none
Reset
none
NFLASH_IO[3]
NFLASH_IO[7]
NFLASH_IO[1]
NFLASH_IO[0]
NFLASH_IO[0]
NFLASH_IO[0-7]
NFLASH_IO[5]
NFLASH_IO[4]
NFLASH_IO[4]
NFLASH_IO[6]
NFLASH_IO[2]
NFLASH_IO[1]
NFLASH_IO[0]
NFLASH_IO[2]
NFLASH_IO[7]
NFLASH_IO[6]
NFLASH_IO[5]
NFLASH_IO[4]
NFLASH_IO[3]
NFLASH_IO[0]
NFLASH_IO[2]
NFLASH_IO[7]
NFLASH_IO[6]
NFLASH_IO[5]
NFLASH_IO[4]
NFLASH_IO[3]
NFLASH_CLE_N
NFLASH_RE_N
NFLASH_CS1_N
NFLASH_ALE_N
NFLASH_RDBY_N
G
D
G
D
LED_D
LED_ST
LED_SH
CS_SPI
nRESET
CS_SPI
nRESET
DOUT
SCLK
SCLK
8.192MHz
UNITSEL1
UHW0
RWn
NFLASH_CS1_N
UNITSEL0
DEVSEL2
UNITSEL2
DEVSEL2
UNITSEL2
R151
R107
DG
R152
DEVSEL1
DEVSEL0
R137
R143
4.7k
R144
DG
R145
R146
R153
FH_HW0
CLK_HW0
DHW0
R105
+3.3V_CPU
R128
R142
1
2
3
4
5
6
7
8
R127
R106
DIN
nWPS
R104
R136
R132
+3.3V_CPU
R129
TP_8.192MHz
R130
+3.3V_CPU
+3.3V_CPU
R131
R140
R139
C127
C126
nINT_PLD
USB_FLT0
USB_FLT0
R103
R111
R157
8ms
R158
R147
1
2
3
45
6
7
8
IC102
1
NC1
2
NC2
46
NC27
47
NC28
3
NC3
48
NC29
4
NC4
45
NC26
5
NC5
44
I/O7
6
NC6
43
I/O6
7
R/*B
42
I/O5
8
*RE
41
I/O4
9
*CE
40
NC25
10
NC7
39
NC24
11
NC8
38
NC23
12
VCC1
37
VCC2
13
VSS1
36
VSS2
14
NC9
35
NC22
15
NC10
34
NC21
16
CLE
33
NC20
17
ALE
32
I/O3
18
*WE
31
I/O2
19
*WP
30
I/O1
20
NC11
29
I/O0
21
NC12
28
NC19
22
NC13
27
NC18
23
NC14
26
NC17
24
NC15
25
NC16
R173
R148
R141
IC101
AB19
AB19
AC19
AC19
B1
B1
AC22
AC22
AB23
AB23
AB20
AB20
AC21
AC21
AB21
AB21
AC20
AC20
W20
W20
D15
D15
D12
D12
D9
D9
D10
D10
D11
D11
D8
D8
Y22
Y22
AA22
AA22
AA23
AA23
T20
T20
V20
V20
T19
T19
G23
G23
H22
H22
H23
H23
J23
J23
J22
J22
K22
K22
AB22
AB22
D14
D14
D13
D13
T23
T23
U19
U19
W22
W22
Y23
Y23
W23
W23
T22
T22
U23
U23
U22
U22
V23
V23
V22
V22
U20
U20
R19
R19
R20
R20
V19
V19
K23
K23
L22
L22
M22
M22
L23
L23
M23
M23
N22
N22
N23
N23
P23
P23
P22
P22
H20
H20
H19
H19
J20
J20
J19
J19
K19
K19
K20
K20
R125
1
2
3
4
5
6
7
8
R126
1
2
3
4
5
6
7
8
R134
1
2
3
4
5
6
7
8
R135
NAND Flash
512MB
512MB
(To CPLD)
(From CPLD)
(To CPLD)
(From CPLD)
(From CPLD)
(To CPLD)
(To CPLD)
(To CPLD)
(To CPLD)
(To CPLD)
Place on solder side
(SLIC_INT)
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