Port Sm1/Sm2; Port Sm1/Sm2 Functions - NEC V850ES/DJ2 User Manual

4.4 Port SM1/SM2

4.4.1 Port SM1/SM2 functions

• 8-bit output port
• Port mode/control mode (Hi-Z output as alternate function) specified in 1-bit units (SM12MC
register)
Port Mode
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Remarks: 1. PORT:
PM:
PMC:
PFC:
2. ×:
-:
(1) SM1SM2 Mode Control Register (SM12MC)
It can be read and written in 8-bit unit.
Figure 4-6: SM1SM2 Mode Control Register (SM12MC) Format
7
SM12MC SM24HZC SM23HZC SM22HZC SM21HZC SM14HZC SM13HZC SM12HZC SM11HZC
R/W R/W R/W
SMmnHZC
0 Hi-Z output
1 SMmn output
Chapter 4 Port Functions
Table 4-4: Port MT2 Functions
Alternate Function
SM11
SM12
SM13
SM14
SM21
SM22
SM23
SM24
Port
Port mode register
Port mode control register
Port function control register
available
not available
6 5 4
R/W R/W
Output data control (m = 1, 2 and n = 1 - 4)
Preliminary User's Manual U17763EE1V1UD00
TYPE
PORT
B-1 -
B-1 -
B-1 -
B-1 -
B-1 -
B-1 -
B-1 -
B-1 -
3 2
R/W R/W
Register
PM PMC
- ×
- ×
- ×
- ×
- ×
- ×
- ×
- ×
1 0 Address
0x2D
R/W R/W
Initial
value
0x00
83