Schematic Diagrams
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
MODEL_ID RB
10KN240PU
ITE8987
X
RA
RA
RB
J_KB1
124
KBC_SPI_*_R = 0.1"~0.5"
N250PU
10KX
braswell platform
PIN 106
8887H 䔞HSPI䘬leve l 䁢3.3 V, PIN1 06 ㍍3.3V
8887H 䔞HSPI䘬leve l 䁢1.8 V, PIN1 06 ㍍1.8V
EC ROM(EC ROM for BIOS+ME+EC) power
㍍
VDD3
8987 PIN 106 ㍍VDD3( EC ROM for EC),⎴EC
SPI ROM POWER
EC ROM(EC ROM for BIOS+ME+EC) power
㍍
VDD3
Bay tril ἧ䓐898 7 aut o load shar e RO M ἧ䓐1.8V
Braswell ἧ䓐IT E 8887 H shar e RO M ἧ䓐1.8V
ἧ䓐
IT E 898 7 no n shar e ROMἧ䓐VDD3
VSTBY_FSPI
䁢姕⭂
FS PI LEVEL(3.3V/1.8V),ἧ䓐STBY
POWER
FOR 14"
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
⎗婧㔜
33--1 00 ohm
by Project
IT8887/IT8987:
㓗㓗㓗㓗㎜㎜㎜㎜
1.8V/3/3 V
by EC setting
IT8987: 3.3VS/1.8VS
怠㑯
by
EC code setting
OPTION
(
⎗ẍ嬲≽ὅEC㍸ὃ䘬
EXECL堐)
㛒⛐
EXECL
堐䘬≇傥⎗ẍ冒埴␥⎵
DEBUG PORT
To VGA(2168)
FOR 15"
J_KB2
124
LED KB
FOR 15"
VOLTAGE
3.3V
0V
D01 to D02
D02 to D02a
EC
㍍㓞⇘
ALL_SYS_PWR GD del ay >
5ms
⼴ㇵ䘤
DELAY_ALL_SYS_PWRG D
0419 Modify
0420 modify
0420 modify
0420 modify
0511 modify
0428 Modify net name
0504 DEL
0629 CHG
0630 CHG FP
0511 del
0511 del
0511 CHG
0512 Add
0629 CHG
0629 CHG
0630 CHG PF for factory bug
AC_PRESENT
PM_PWROK
MODEL_ID
MODEL_ID
BAT_VOLT
ALSPI_SCLK
ALSPI_MSO
PCLK_KBC_RPCLK_KBC
ALSPI_MSI
ALSPI_CE#
KBC_WRESET#
KB-SI3
KB-SI2
KB-SO5
KB-SI1
KB-SO3
KB-SO4
KB-SO11
KB-SI6
KB-SI4
KB-SO8
KB-SO7
KB-SO6
KB-SO14
KB-SO2
KB-SO15
KB-SI0
KB-SI5
KB-SO12
KB-SO1
KB-SO10
KB-SO0
KB-SI7
KB-SO9
KB-SO13
SCI#
SWI#
3IN1
80CLK
SMC_BAT
SMD_BAT
BAT_DET
SMC_BAT
SMD_BAT
BAT_DET
BAT_VOLT
VSTBY_FSPI
FDIO3
SPI_VDD_1
FDIO2
KBLIGHT_ADJ
SMI#
ALSPI_CE#
ALSPI_SCLK
ALSPI_MSO
ALSPI_MSI
CPU_FAN
8987_AUTO_LOAD_PWR
ITE8887_PN96
ITE8887_PN98
ITE8887_PN97
KB-SI3
KB-SI2
KB-SO5
KB-SI1
KB-SO3
KB-SO4
KB-SO11
KB-SI6
KB-SI4
KB-SO8
KB-SO7
KB-SO6
KB-SO14
KB-SO2
KB-SO15
KB-SI0
KB-SI5
KB-SO12
KB-SO1
KB-SO10
KB-SO0
KB-SI7
KB-SO9
KB-SO13
FON-KB
80CLK
3IN1
KBLIGHT_ADJ
VDD3
VDD3
KBC_AGND
KBC_AVDD
VDD3
VDD3
3.3VA
KBC_AGND
VDD3
3.3V
1.8VA
VDD3
VDD3
VDD3
3.3V
VDD3
VDD3
KB_LED_PWR
5VS KB_LED_PWR
5VS
KB_LED_PWR
VDD3
PWR_SW#22
LID_SW#15,19
TP_CLK19
TP_DATA19
KBC_BEEP16
LED_BAT_FULL17
LED_PWR17
LED_BAT_CHG17
SMC_BAT29
SMD_BAT29
TOTAL_CUR29
ME_WE4
H_PROCHOT_EC7
BUF_PLT_RST#7,10,18,19,20
SERIRQ7,18
LPC_AD37,18
LPC_AD27,18
LPC_AD17,18
LPC_AD07,18
LED_ACIN17
AC_IN#29
SMI#37
DD_ON 18,22,23,24
LAN_WAKEUP# 1 9
EC_RSMRST# 22
SCI#37
LPC_FRAME#7,18
PCLK_KBC7
SMC_EDP_CLK14,21
SMD_EDP_DAT14,21
LOT6_CHG 29
CPU_FANSEN 19
BAT_VOLT29
BAT_DET29
THERM_VOLT3 CCD_EN19
WLAN_PWR_EN 20
SB_KBCRST# 38
CPU_FAN19
SMD_EDP_DAT14,21
SMC_EDP_CLK14,21
SWI# 37
ALL_SYS_PWRGD 15,22
CSCL 19
CSDA 19
3G_POWEREN 20
PMOSFET_ CONTROL# 29
PWR_BTN#7
SUS_PWR_ACK 7
WLAN_EN20
3G_EN 20
3G_RST# 20
KBC_MUTE#16
PMU_BATLOW#7
SUSB# 7,15,18,22
SUSC# 7,25
BKL_EN 15
1.05VS_EN 28
1.24VA_PG 28
VA_ON 22
DELAY_ALL_SYS_PWRGD7
PMIC_THERMTRIP38
CHG_JAP 29
VNN_EN 27
PMU_SLP_S0#7
1.05VS_PG 28
PM_PWROK 7,26
AIRPLAN_LED#17
1.8VA_EN 28
VR_PWRGD 22,2 6
USB_CHARGE_EN22,23
BT_EN20
EC_EMMC_LED#38
SUS_STAT_N7
Title
Size Document Number Re v
Date: Sheet
of
6-71-N24P0-D02
2.0
[21] KBC (ITE IT8987E)
Custom
21 39Friday, August 05, 2016
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
Title
Size Document Number Re v
Date: Sheet
of
6-71-N24P0-D02
2.0
[21] KBC (ITE IT8987E)
Custom
21 39Friday, August 05, 2016
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
Title
Size Document Number Re v
Date: Sheet
of
6-71-N24P0-D02
2.0
[21] KBC (ITE IT8987E)
Custom
21 39Friday, August 05, 2016
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
R222 33_04
.
L14 *HCB1608KF-121T25
15"
R329 10K_04
14"
C202
0.1u_16V_Y5V_04
C301
*0.1u_16V_Y5V_04
15"
IT8987
U11B
IT8987E
GPA0/PWM0
24
GPA2/PWM2
28
GPA3/PWM3
29
GPA4/PWM4
30
GPI2/ADC2
68
GPI5/ADC5/DCD1#
71
GPI6/ADC6/DSR1#
72
GPH0/ID0/CLKRUN#
76
GPJ4/DAC4/DCD0#
80
GPJ5/DAC5/RIG0#
81
GPC1/SMCLK1
115
GPC2/SMDAT1
116
GPG0/SSCE1#
125
GPJ7
2
TACH1/TMA1/GPD7
48
EGAD/GPE1
82
EGCS#/GPE2
83
EGCLK/GPE3
84
HMOSI/ID6/GPH6
93
HSCE#/ID3/GPH3
96
HSCK/ID4/GPH4
97
HMISO/ID5/GPH5
98
FDIO3/DSR0#/GPG6
99
100
SSCE0#/GPG2
CRX1/SIN1/SMCLK3/ID1/GPH1
119
GPJ6
128
TACH2/HDIO2/GPJ0
94
GPJ2/DAC2/TACH0B
78
GPF7/SMDAT2/PECIRQT#
118
KSO16/SMOSI/GPC3
56
KSO17/SMISO/GPC5
57
R790 10K_04
R345 10K_04
C212 *10p_50V_NPO_04
R17 *0402_short
J_LEDKB1
FP225H-006S10M
15"
1
2
3
4
5
6
U6
GD25D10BTIGR
PCB Footprint = M-SO8
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SCK
6
HOLD#
7
VDD
8
R28 10K_04
R282 0_04
R224 33_04
C239 1u_6.3V_X5R_04
R26 0_04
D4
BAV99 RECTIFIER
A
C
AC
C179
10u_10V_Y5V_08
J_KB2
85208-24051
15"
24
23
22
14
12
11
21
8
20
19
6
5
18
4
17
10
9
7
3
2
1
16
15
13
R240 0_04
R22 2.2K_04
R245 1.5K_04R253 47_04
R241 *0_04
R219 0_04
.
L12
HCB1005KF-121T20
D5
BAV99 RECTIFIER
A
C
AC
J_80DEBUG1
85205-04001
1
2
3
4
R225
3.3K_1%_04
R263 10K_04
R246 1.5K_04
C240
0.1u_16V_Y5V_04
R333 10K_04
15"
R319 100K_04
R255 *0_04
D2
BAV99 RECTIFIER
A
C
AC
R251 *0_04
C210
0.1u_16V_Y5V_04
R311 *10_04
R798 *0_04
D1
BAV99 RECTIFIER
A
C
AC
LPC
DAC
SMBUS
PWM
PS/2
WAKE UP
GP INTERRUPT
UART
K/B MATRIX
IT8987
ADC
U11A
IT8987E
GPB6/KBRST#
4
GPM6/SERIRQ
5
GPM5/LFRAME#
6
GPM3/LAD3
7
GPM2/LAD2
8
GPM1/LAD1
9
GPM0/LAD0
10
GPM4/LPCCLK
13
WRST#
14
GPD4/ECSMI#
15
GPC7/PWUREQ#/BBO/SMCLK2ALT
16
GPD0/RI1#
18
GPE7/L80LLAT
20
GPD1/RI2#
21
GPD2/LPCRST#
22
GPD3/ECSCI#
23
GPA1/PWM1
25
GPA5/PWM5
31
GPA6/PWM6/SSCK
32
GPD5/GINT/CTS0#
33
GPA7/PWM7/RIG1#
34
GPG2/SSCE0#
77
GPJ3/DAC3/TACH1B
79
GPF0/PS2CLK0/TMB0/CEC
85
GPF2/PS2CLK1/DTR0#
87
GPF4/PS2CLK2
89
GPF5/PS2DAT2
90
GPB0/RXD/SIN0
108
GPB1/TXD/SOUT0
109
GPB3/SMCLK0
110
GPB4/SMDAT0
111
GPF6/SMCLK2/PECI
117
GPB5/GA20
126
LPCPD#/GPE6
17
L80HLAT/BAO/GPE0
19
RTS1#/GPE5
35
KSO0/PD0
36
KSO1/PD1
37
KSO2/PD2
38
KSO3/PD3
39
KSO4/PD4
40
KSO5/PD5
41
KSO6/PD6
42
KSO7/PD7
43
KSO8/ACK#
44
KSO9/BUSY
45
KSO10/PE
46
TACH0A/GPD6
47
KSO11/ERR#
51
KSO12/SLCT
52
KSO13
53
KSO14
54
KSO15
55
KSI0/STB#
58
KSI1/AFD#
59
KSI2/INIT#
60
KSI3/SLIN#
61
KSI4
62
KSI5
63
KSI6
64
KSI7
65
VHSPI (1.8V/3.3V)
106
PWRSW/GPE4
107
RING#/PWRFAIL#/CK32KOUT/LPCRST#/GPB7
112
TMRI0/GPC4
120
CTX0/TMA0/GPB2
123
TMRI1/GPC6
124
3
GPH7
VCC (1.8V/3.3V)
11
VSTBY126VSTBY2
50
AVCC
74
VSTBY392VSTBY4
114
VSTBY5
121
VSTBY6(PLL)
127
VSS11VCORE12VSS327VSS449AVSS
75
VSS591GPC0/CRX0
113
GPG1/ID7/DTR1#/SBUSY
122
GPF1/PS2DAT0/TMB1
86
GPF3/PS2DAT1/RTS0#
88
GPI0/ADC0
66
GPI1/ADC1
67
GPI3/ADC3
69
GPI4/ADC4
70
GPI7/ADC7/CTS1#
73
HDIO3/GPJ1
95
FSCE#
101
FMOSI
102
FMISO
103
FSCK
105
VSS6
104
C180
0.1u_16V_Y5V_04
C300
*10u_6.3V_X5R_06
15"
C12
0.1u_16V_Y5V_04
R250 *0_04
R46
*20mil short-p
C226 0.1u_16V_Y5V_04
R24 10K_04
R228 33_04
C235
0.1u_16V_Y5V_04
R291 0_04
R29 *0_04
C173 0.1u_16V_Y5V_04
R180 10K_04
U24
NCT3940S-A
15"
VOUT
3
GND
5
VIN
2
FON
1
VSET
4
GND
6
GND
8
GND
7
J_KB1
85208-24051
14"
24
23
22
14
12
11
21
8
20
19
6
5
18
4
17
10
9
7
3
2
1
16
15
13
R254 47_04
C211 0.1u_16V_Y5V_04
R220
3.3K_1%_04
Sheet 21 of 39
KBC ITE IT8987E
KBC ITE IT8987E
B.Schematic Diagrams
B - 22 KBC ITE IT8987E
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