m30833fjgp Renesas Electronics Corporation., m30833fjgp Datasheet - Page 329

• Manufacturer Part Number: m30833fjgp
• Description: Renesas 16/32-bit Single-chip Microcomputer M16c Family / M32c/80 Series
• Manufacturer: Renesas Electronics Corporation.

R
R
M
21.5 Group 2 Communication Function
e
E
3
. v
J
2
Figure 21.42 G2TB and G2RB Register
9 0
The communication function is available when two 8-bit shift registers are used with the waveform genera-
tion function.
In the intelligent I/O group 2, the variable clock synchronous serial I/O or IEBus
is available. Figures 21.42 to 21.45 show registers associated with the communication function.
NOTES:
. 1
C
B
1. IEBus is a trademark of NEC Electronics Corporation.
1 3
8 /
0
3
3 0
b15
b15
J
Group 2 SI/O Transmit Buffer Register
G
Group 2 SI/O Receive Buffer Register
- 4
n a
o r
NOTES:
1 0
3 .
NOTES:
u
1. The OER bit is set to "0" when the GMD1 to GMD0 bits in the G2MR register are set to "00
, 1
1 3
p
1. Set the P bit to "0" before setting the PC bit to "1"
(communication unit reset) or the RE bit in the G2CR register is set to "0" (receive disable).
0 2
(
M
b8
6 0
b8
3
b7
2
b7
C
8 /
Page 306
, 3
M
3
b0
b0
2
(b12 - b11)
C
(b15 - b13)
f o
(b7 - b0)
(b11 - b8)
(b7 - b0)
Symbol
Symbol
8 /
SZ0
SZ1
SZ2
OER
PC
4
Bit
A
P
Bit
3
Symbol
G2TB
8 8
Symbol
G2RB
) T
Transfer Bit Length
Select Bit
Nothing is assigned. When write, set to "0".
When read, its content is indeterminate.
ACK Function
Select Bit
Parity Calculation
Continuing Bit
Parity Function
Select Bit
Transmit Buffer
Receive Buffer
Nothing is assigned. When write, set to "0".
When read, its content is indeterminate.
Overrun Error Flag
Nothing is assigned. When write, set to "0".
When read, its content is indeterminate.
Bit Name
Bit Name
Address
016D
Address
016F
(1)
16
16
-016C
21. Intelligent I/O (Group 0, 1 Communication Function)
- 016E
(1)
b10
0 : Adds no ACK bit
1 : Adds the ACK bit after last transmit bit
0 : Adds the parity bit after a data to be
1 : Carries over a parity to a data to be
0 : No parity
1 : Parity (even parity only)
0
0
0
0
1
1
1
1
Data to be transmitted
transmitted
b9
transmitted
0
0
1
1
0
0
1
1
16
16
b8
0
1
0
1
0
1
0
1
Received data
0 : No overrun error
1 : Overrun error found
: 8 bits long
: 1 bits long
: 2 bits long
: 3 bits long
: 4 bits long
: 5 bits long
: 6 bits long
: 7 bits long
After Reset
Indeterminate
Function
After Reset
Indeterminate
Function
(1)
communication function
2
"
RW
RW
RW
RW
RW
RW
RW
RO
RW
RO
RO