PSD4235G2V-10U STMICROELECTRONICS [STMicroelectronics], PSD4235G2V-10U Datasheet - Page 51

• Manufacturer Part Number: PSD4235G2V-10U
• Description: Flash In-System Programmable (ISP) Peripherals for 16-bit MCUs
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

80C196 and 80C186
In Figure 21, the Intel 80C196 MCU, which has a
16-bit multiplexed address/data bus, is shown
connected to a PSD4256G6V. The READ Strobe
(RD, CNTL1), and WRITE Strobe (WR/WRL,
CNTL0) signals are connected to the CNTL pins.
When BHE is not used, the PSD can be configured
to receive WRL and WRITE Enable High-byte
Figure 21. Interfacing the PSD with an 80C196
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
RESET
57
56
55
54
53
52
51
50
32
49
48
44
45
46
47
58
59
60
61
62
63
64
65
36
37
38
39
40
41
42
43
19
18
6
80C196NT
NMI
VREF
VPP
ANGND
ACH4/P0.4/PMD.0
ACH5/P0.5/PMD.1
ACH6/P0.6/PMD.2
ACH7/P0.7/PMD.3
P6.0/EPA8
P6.1/EPA9
P6.2/T1CLK
P6.3/T1DIR
P6.4/SC0
P6.5/SD0
P6.6/SC1
P6.7/SD1
P2.0/TX/PVR
P2.1/RXD/PALE
P2.2/EXINT/PROG
P2.3/INTB
P2.4/INTINTOUT
P2.5/HLD
P2.6/HLDA/CPVER
P2.7/CLKOUT/PAC
P1.0/EPA0/T2CLK
P1.1/EPA1
P1.2/EPA2/T2DIR
P1.3/EPA3
P1.4/EPA4
P1.5/EPA5
P1.6/EPA6
P1.7/EPA7
X1
X2
BUSWIDTH/P5.7
BHE/WRH/P5.5
ALE/ADV/P5.0
WR/WRL/P5.2
SLPINT/P5.4
READY/P5.6
P4.2/AD10
P4.3/AD11
P4.4/AD12
P4.5/AD13
P4.6/AD14
P4.7/AD15
INST/P5.1
P3.0/AD0
P3.1/AD1
P3.2/AD2
P3.3/AD3
P3.4/AD4
P3.5/AD5
P3.6/AD6
P3.7/AD7
P4.0/AD8
P4.1/AD9
EP.0/A16
EP.1/A17
EP.2/A18
EP.3/A19
RD/P5.3
RESET
EA
3
4
5
6
7
10
11
12
13
14
15
16
17
18
19
20
14
13
12
11
9
7
8
4
33
31
10
3
1
2
A16
A17
A18
A19
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
RD
BHE
ALE
RESET
WR
(WRH/DBE, PD3) from the MCU. Higher address
inputs (A16-A19) can be routed to Ports A, B, or C
as input to the PLD.
The AMD 80186 family has the same bus connec-
tion to the PSD as the 80C196.
10
11
12
13
14
15
16
17
18
19
20
59
60
40
79
80
39
71
72
73
74
75
76
77
78
3
4
5
6
7
1
2
PE0 (TMS)
PE1 (TCK/ST)
PE2 (TDI)
PE3 (TDO)
PE4 (TSTAT/RDY)
PE5 (TERR)
PE6 (VSTBY)
PE7 (VBATON)
PSD
ADIO0
ADIO1
ADIO2
ADIO3
ADIO4
ADIO5
ADIO6
ADIO7
ADIO8
ADIO9
ADIO10
ADIO11
ADIO12
ADIO13
ADIO14
ADIO15
CNTL0 (WR)
CNTL1 (RD)
CNTL2 (BHE)
PD0 (ALE)
PD1 (CLKIN)
PD2 (CSI)
PD3 (WRH)
RESET
GND
A19-A16
AD15-AD0
8
GND
VCC
30 49 50 70
9
GND
GND
VCC
VCC
GND
29
VCC
PG0
PG1
PG2
PG3
PG4
PG5
PG6
PG7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PF0
PF1
PF2
PF3
PF4
PF5
PF6
PF7
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
69
31
32
33
34
35
36
37
38
21
22
23
24
25
26
27
28
51
52
53
54
55
56
57
58
61
62
63
64
65
66
67
68
41
42
43
44
45
46
47
48
A16
A17
A18
A19
PSD4256G6V
A [ 19:16 ]
AD [ 15:0 ]
AI04930
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