EZ80F915050MOD Datasheet, PDF (31/34 Pages) Zilog, Inc. – eZ80F91 Module compact, high-performance Ethernet module

eZ80F915050MOD
eZ80F91 Module Product Specification
Schematics
25
Figures 8 through 10 diagram the layout of the eZ80F91 Module. Ethernet circuiting devices are not loaded on the
eZ80F91 Module. However, these devices appear in the following schematics for reference purposes.
A[0..23]
D[0..7]
-CS[0..3]
IICSDA
IICSCL
CLK_OUT
-DIS_FLASH
A[0..23]
D[0..7]
-CS[0..3]
IICSDA
IICSCL
CLK_OUT
-DIS_FLASH
-FLASHWE
RTC_VDD
PA[0..7]
PB[0..7]
PC[0..7]
PD[0..7]
-RESET
-RD
-WR
-IOREQ
-MREQ
-INSTRD
-WAIT
-HALT_SLP
-BUSREQ
-BUSACK
-NMI
-FLASHWE
RTC_VDD
PA[0..7]
PB[0..7]
PC[0..7]
PD[0..7]
-RESET
-RD
-WR
-IOREQ
-MREQ
-INSTRD
-WAIT
-HALT_SLP
-BUSREQ
-BUSACK
-NMI
TDI
TDO
TRIGOUT
TCK
TMS
-TRSTN
VCC
VCC VCC
R1
4.7K
R2
4.7K
IICSDA
IICSCL
EZ80CLK
JP3
1
2
WR_EN
VCC
R5
2.2K
R6
2.2K
-WAIT
-BUSREQ
VCC VCC
R7
R8
10K
10K
TDI
TDO
TRIGOUT
TCK
TMS
-TRSTN
R9
4.7K
-DIS_IRDA
R12
10K
U1C
5
6
74LCX04
TSSOP14
DISABLE_IRDA
PD2 = IR_SD
Connector 1
JP1
1
3
-TRSTN
5
-F91_WE
7
GND
9
A6
11
A10
13
GND
15
A8
17
A13
19
A15
21
A18
23
A19
25
A2
27
A11
29
A4
31
A5
33
35
A21
37
A22
39
-CS0
41
-CS2
43
D1
45
D3
47
D5
49
D7
51
-MREQ 53
GND
55
-WR 57
-BUSACK 59
2
4
6
8
10
VCC
12 A0
14 A3
16
VCC
18 A7
20 A9
22 A14
24 A16
26
GND
28
A1
30
A12
32
A20
34 A17
36 ^-DIS_FLASH
38
VCC
40 A23
42 -CS1
44 D0
46 D2
48 D4
50 GND
52 D6
54 -IOREQ
56 -RD
58 -INSTRD
60 -BUSREQ
HEADER 30x2/SM
Connector 2
JP2
PA7 ₁
PA5 ₃
PA3
5
PA1
7
VCC
9
PB7 11
PB5 13
PB3 15
PB1 17
GND
19
PC6 21
PC4 23
PC2 25
PC0 27
PD6 29
PD5 31
PD3 33
PD1 35
TDO 37
GND
39
TCK 41
RTC_VDD43
IICSCL 45
IICSDA 47
-FLASHWE49
-CS3
51
-RESET 53
VCC
55
-HALT_SLP ₅₇
VCC
59
2 ^PA6
4 ^PA4
6 ^PA2
8 ^PA0
10
GND
12 PB6
14 PB4
16 PB2
18 PB0
20 PC7
22 PC5
24 PC3
26 PC1
28 PD7
30
GND
32 PD4
34 PD2
36 PD0
38 TDI
40 TRIGOUT
42 TMS
44
EZ80CLK
46
48
GND
50
52
-DIS_IRDA
54 -WAIT
56 GND
58 -NMI
60
HEADER 30x2/SM
VCC
R20
10K
U4B
4
6
5
74LCX32
TSSOP14
U1B
3
4
74LCX04
TSSOP14
U1F
13
12
GND
74LCX04
TSSOP14
U4A
1
3
2
74LCX32
TSSOP14
U4D
12
11
13
GND
74LCX32
TSSOP14
IRDA_SD
-F91_WE
R37
10K
U1A
1
2
74LCX04
TSSOP14
-F91_WP
-F91_WP
VCC
R3
C1
R4
68R
2R7
(MMA 02 04)
PD0
IRDA_SD
PD1
330nF
U2
5 _VCC
1 _LEDA
2 _TXD
4 _SD
3 _RXD
6 _GND
ZHX1810
VCC
C2
0.1µF
VCC
U3
RESET
2
open-drain
MAX6328UR29
SOT-23-L3
R10
10K
-RESET
C3
0.01µF
VCC
alternative: Maxim MAX6802UR29D3
VCC
GND
VCC
GND
GND
Figure 8. eZ80F91 Module Schematic Diagram, #1 of 3—Connectors and Miscellaneous
PS019310-0904
PRELIMINARY
Schematics