upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 92
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
(930 pages)
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Chapter 2
92
Register
PM14
PMC14
P14
PPR14
PMC143 specifies the data bus width of the external memory interface:
- PMC143 = 0: 16-bit data bus D[15:0], D[31:16] pins of port groups 3, 8, 9, 10 operate in port/alternative mode
- PMC143 = 1: 32-bit data bus D[31:0], D[31:16] pins of port groups 3, 8, 9, 10 operate as data bus pins
Table 2-50
Table 2-51
Address
FFFF F43C
FFFF F45C
FFFF F41C
FFFF F3DC
Access
2.4.18 Port group 14 (µPD70F3427 only)
H
H
H
H
Initial
value
FF
00
00
00
Port group 14 is a 3-bit port group. In alternative mode, it comprises pins for
the following functions:
• External memory interface bus clock BCLK
• External memory interface byte enable signals BE2, BE3
Port group 14 includes the following pins:
Port group 14: pin functions and port types
Port group 14: configuration registers
All 8-bit registers can be accessed in 8-bit or 1-bit units.
Preliminary User’s Manual U17566EE1V2UM00
P140 (I/O)
P141 (I/O)
P142 (I/O)
H
H
H
H
(PMCnm = 0)
Port mode
Used bits
X
X
X
X
Pin functions in different modes
X
X
X
X
BCLK
BE2
BE3
Output mode
(PMnm = 0)
Alternative mode
X
X
X
X
(PMCnm = 1)
–
–
–
X
X
X
X
Input mode
(PMnm = 1)
X
PMC143
X
X
a
P140 (I)
P141 (I)
P142 (I)
Pin function
PM142
PMC142
P142
PPR142
after reset
PM141
PMC141
P141
PPR141
Pin Functions
Port type
PM140
PMC140
P140
PPR140
M
M
M
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