M37735EHL Datasheet, PDF (9/34 Pages) Mitsubishi Electric Semiconductor – PROM VERSION OF M37735MHLXXXHP

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MITSUBISHI MICROCOMPUTERS
M37735EHLXXXHP
PROM VERSION OF M37735MHLXXXHP
EPROM MODE
The M37735EHLXXXHP features an EPROM mode in addition to its
normal
modes.
When
the
_____
RESET
signal
level
is
“L”,
the
chip
automatically enters the EPROM mode. Table 2 lists the
correspondence between pins and Figure 5 shows the pin
connections in the EPROM mode.
The EPROM mode is the 1M mode for the EPROM that is equivalent
to the M5M27C101K.
When in the EPROM mode, ports P0, P1, P2, P30, P50, P51, P52,
CNVSS and BYTE are used for the EPROM (equivalent to the
M5M27C101K). When in this mode, the built-in PROM can be
programmed or read from using these pins in the same way as with
the M5M27C101K.
This chip does not have Device Identifier Mode, so that set the
corresponding program algorithm. The program area should specify
address 0100016 – 1FFFF16.
Connect the clock which is either ceramic resonator or external clock
to XIN pin and XOUT pin.
Table 2. Pin function in EPROM mode
VCC
VPP
VSS
Address input
Data I/O
__
CE
__
OE
___
PGM
M37735EHLXXXHP
V CC
CNVSS, BYTE
VSS
Ports P0, P1, P30
Port P2
P52
P51
P50
M5M27C101K
VCC
VPP
VSS
A0 – A16
D0 – D7
__
CE
__
OE
___
PGM
P85/CLK1 ↔ 61
40 ↔ P22/A2/D2
D2
P84/CTS1/RTS1 ↔ ⁶²
P83/TXD0 ^{↔ 63}
P82/RXD0/CLKS0 ↔ 64
39 ↔ _P23/A3/D3
D3
38 ↔ _P24/A4/D4
D4
37 ↔ P25/A5/D5
D5
P81/CLK0 ↔ 65
36 ↔ P26/A6/D6
D6
P80/CTS0/RTS0/CLKS1 ^{↔ 66}
35 ↔ P27/A7/D7
D7
VCC
VCC
67
34 ↔ P30/WEL
A16
AVCC 68
33 ↔ _P31/WEH
VREF ^→ 69
32 ↔ P32/ALE
AVSS ⁷⁰
VSS ⁷¹
M37735EHLXXXHP
31 ↔ _P33/HLDA
30
VSS
VSS
P77/AN7/XCIN ↔ 72
29 → _E/RDE
P76/AN6/XCOUT ^↔ 73
P75/AN5/ADTRG/TxD2 ^{↔ 74}
28 → _XOUT
27 ← XIN
 _∗
P74/AN4/RxD2 ↔ ⁷⁵
26 ← _RESET
P73/AN3/CLK2 ↔ 76
P72/AN2/CTS2 ^↔ 77
P71/AN1 ↔ 78
P70/AN0 ↔ 79
P67/TBIN/ SUB ↔ ⁸⁰
25
CNVSS
VPP
24 ← _BYTE
23 ↔ _P40/HOLD
22 ↔ _P41/RDY
21 ↔ _{P42/ 1}
Fig. 5 Pin connection in EPROM mode
Outline 80P6D-A, 80P6Q-A
∗ : Connect to ceramic oscillation circuit.
: It is used in the EPROM mode.
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